#dementiarisk — Public Fediverse posts

DATE: September 8, 2026 at 03:37AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Early statin use linked to 15% lower dementia risk

URL: https://www.sciencedaily.com/releases/2026/09/260901070520.htm

Starting statins soon after a type 2 diabetes diagnosis may do more than protect the heart. In a nationwide Danish study of more than 132,000 people, those who began statin treatment within a year of diagnosis had a 15% lower relative risk of developing dementia over 10 years compared with those who did not start statins.

URL: https://www.sciencedaily.com/releases/2026/09/260901070520.htm

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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #Statins #DementiaRisk #DiabetesCare #EarlyTreatment #HeartHealth #DanishStudy #PreventiveMedicine #Neurology #ChronicDiseaseManagement #PublicHealth

DATE: September 8, 2026 at 03:37AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Early statin use linked to 15% lower dementia risk

URL: https://www.sciencedaily.com/releases/2026/09/260901070520.htm

Starting statins soon after a type 2 diabetes diagnosis may do more than protect the heart. In a nationwide Danish study of more than 132,000 people, those who began statin treatment within a year of diagnosis had a 15% lower relative risk of developing dementia over 10 years compared with those who did not start statins.

URL: https://www.sciencedaily.com/releases/2026/09/260901070520.htm

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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #Statins #DementiaRisk #DiabetesCare #EarlyTreatment #HeartHealth #DanishStudy #PreventiveMedicine #Neurology #ChronicDiseaseManagement #PublicHealth

DATE: September 8, 2026 at 03:37AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Early statin use linked to 15% lower dementia risk

URL: https://www.sciencedaily.com/releases/2026/09/260901070520.htm

Starting statins soon after a type 2 diabetes diagnosis may do more than protect the heart. In a nationwide Danish study of more than 132,000 people, those who began statin treatment within a year of diagnosis had a 15% lower relative risk of developing dementia over 10 years compared with those who did not start statins.

URL: https://www.sciencedaily.com/releases/2026/09/260901070520.htm

-------------------------------------------------

Private, vetted email list for mental health professionals: https://www.clinicians-exchange.org

Unofficial Psychology Today Xitter to toot feed at Psych Today Unofficial Bot @PTUnofficialBot

-------------------------------------------------

#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #Statins #DementiaRisk #DiabetesCare #EarlyTreatment #HeartHealth #DanishStudy #PreventiveMedicine #Neurology #ChronicDiseaseManagement #PublicHealth

DATE: September 8, 2026 at 08:00AM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------

TITLE: Massive study reveals a “physical activity paradox” in dementia risk

URL: https://www.psypost.org/massive-study-reveals-a-physical-activity-paradox-in-dementia-risk/

Staying active is widely recommended to protect the brain from decline as people age, but the context in which that movement happens seems to matter. A large new data analysis indicates that while recreational exercise and household chores are linked to a lower risk of developing dementia, physically demanding jobs and active commuting might actually increase that risk. The findings were published in The Lancet Public Health.

Dementia is a broad category of conditions characterized by a gradual loss of memory, thinking skills, and the ability to perform daily tasks. Because there are limited medical treatments for the condition, public health professionals focus heavily on prevention through lifestyle habits. Physical activity is one of the primary habits recommended to keep the brain healthy. However, human movement is divided into distinct categories depending on the context. These categories include recreational time, work duties, household chores, and transportation.

The research was motivated by a gap in how scientists understand movement and brain health. Most public health guidelines are based on studies of recreational exercise. Moving the body outside of work definitely has brain benefits. For instance, a 2025 study of older adults in China found that people who regularly spent time outdoors experienced a lower likelihood of developing dementia. But recreational exercise only accounts for a tiny fraction of total global physical activity.

“We have known for years that physical activity is generally associated with a lower risk of dementia, but most studies treat all movement as though it were the same,” Natan Feter, a postdoctoral research associate in the Human and Evolutionary Biology Department at the University of Southern California and a researcher in the Graduate Program in Epidemiology at the Federal University of Rio Grande do Sul in Brazil, told PsyPost. “Evidence from cardiovascular research suggests a ‘physical activity paradox,’ in which leisure-time exercise provides health benefits while physically demanding work may not. We wanted to determine whether this paradox also applies to dementia risk.”

In reality, the vast majority of human energy expenditure happens during work, commuting, and home maintenance. This is especially true in lower-income countries, where recreational exercise is far less common. Because dementia rates are expected to climb drastically in these regions over the next few decades, the authors wanted to synthesize existing research to see if the protective benefits of physical activity apply across all areas of daily life.

To answer this question, the researchers conducted a systematic review and meta-analysis. This process involves gathering all the available scientific literature on a topic, filtering out studies that do not meet strict quality standards, and statistically combining the data from the remaining studies. They searched multiple scientific databases for studies published up to May 2026. They specifically looked for studies that measured physical activity in adults who did not have cognitive issues at the start, and then tracked those individuals for at least one year to see who developed dementia.

The final analysis included 74 observational studies. The combined sample size was enormous, encompassing over 4.2 million participants across 30 different countries. The participants had a median age of 67 at the start of their respective studies, and there was a relatively even split between men and women. The researchers followed these participants for a median duration of 10 years. During that time, over 64,000 cases of all-cause dementia were diagnosed.

Overall, high levels of physical activity were associated with a lower chance of cognitive decline. Compared to the least active individuals, those with high overall physical activity had a 20 percent lower risk of developing all-cause dementia. The risk dropped by 21 percent for Alzheimer’s disease and 29 percent for vascular dementia, a type of cognitive decline caused by reduced blood flow to the brain.

However, breaking the numbers down by the context of the activity painted a much more complex picture. High levels of recreational physical activity were linked to a 24 percent lower risk of all-cause dementia. Household chores also showed a protective trend, linked to a 15 percent drop in risk.

On the other hand, occupational physical activity was associated with a 20 percent higher risk of developing dementia. Active commuting, such as walking or cycling to work, also correlated with a 10 percent increase in risk. When the researchers looked at how the amount of activity influenced these outcomes, they found that the protective benefits of recreational exercise leveled off after a certain point. For occupational activity, the risk of dementia increased alongside the amount of physical labor required by the job.

“The contrasting patterns were particularly striking,” Feter noted. “As leisure-time physical activity increased, dementia risk progressively declined before plateauing, while occupational physical activity showed the opposite pattern.” Ultimately, he added, “These findings support making time for enjoyable, voluntary physical activity, even for people whose jobs are already physically demanding.”

“The main message is clear: as physical activity and especially leisure-time physical activity was related to lower risk of dementia, one of the easiest ways to maintain and improve brain health across the lifespan is to be active during leisure time,” Eero Haapala, a senior researcher at the Preventive Health Unit at the South-Eastern Finland University of Applied Sciences and a research director at the Institute of Biomedicine at the University of Eastern Finland who was not involved in the study, told PsyPost.

“This review is also among the first to look at the domain-specific associations providing more nuanced information whether the context or place where physical [activity] takes place is an important consideration in the associations between physical activity and dementia risk,” Haapala added. “Compared to previous reviews, this study includes substantially higher sample size.”

While the findings offer a promising strategy for maintaining brain health, the researchers stressed that lifestyle habits are only part of the equation. “A 24% lower relative risk associated with leisure-time physical activity is meaningful at the population level, particularly because dementia is common and currently has limited treatment options,” Feter explained. “However, this represents a relative difference between groups, not a guarantee that an active individual will not develop dementia. A person’s absolute risk also depends on age, genetics, cardiovascular health, education, and several other factors.”

The findings regarding recreational exercise are in line with research covered by PsyPost in 2016, which found that leisure-time physical activities were associated with a reduced risk of Alzheimer’s disease. Other recent work also points in the same direction. For instance, a study covered by PsyPost in 2025 found that higher activity levels lowered dementia risk, though that study measured overall device-tracked movement rather than separating the data into specific domains like work or leisure.

Similarly, a 2026 study covered by PsyPost indicated that objectively measured cardiovascular health is tied to a reduced risk of cognitive decline, which complements the idea that beneficial forms of movement protect the brain.

The authors propose several reasons why physical labor at work might be linked to worse brain health. First, physically demanding jobs often come with high psychological stress, lower wages, and reduced autonomy. Workers in these roles might also face elevated exposure to environmental hazards like noise and air pollution, which are known threats to brain health. Finally, many manual labor jobs involve highly repetitive tasks that do not stimulate the brain in ways that build cognitive resilience.

Feter elaborated on this point, noting that the higher risk could also stem from “insufficient recovery” and “limited control over one’s work.” But he emphasized that “the findings should not be interpreted as advice for people to avoid movement at work.” “Rather, they suggest that occupational activity may not offer the same benefits as voluntary exercise and should not necessarily be considered a substitute for leisure-time activity,” he added.

“While the study found that occupational physical activity was related to higher dementia risk, this does not mean that all occupations with some physical demands are automatically bad for the brain health,” Haapala pointed out. “This finding calls for the employers to examine whether physically demanding jobs also include other stressors that could negatively affect brain health.”

Active commuting might carry similar risks, as walking or cycling to work is sometimes an economic necessity rather than a recreational choice, and it frequently exposes commuters to heavy traffic exhaust.

“What is interesting and against, for example WHO’s policy brief concluding that active mobility, i.e., commuting physical activity, may prevent cognitive decline, is that the evidence from the current review suggested that higher levels of commuting physical activity are related to higher risk of all-cause dementia,” Haapala explained. “While this negative influence of commuting physical activity may not be due to physical activity itself but influenced by air pollution or some other unmeasured factors, these findings suggest that promoting active commuting may not be the most effective way to improve brain health and prevent dementia.”

As with all research, there are a few things to keep in mind. The most glaring issue is a massive geographical mismatch in the data. Over 90 percent of the studies included in this analysis were conducted in high-income countries like the United States, the United Kingdom, Sweden, and Finland. Very little data came from lower-income and middle-income regions. This is a problem because dementia rates are expected to grow fastest in the developing world, where manual labor and active commuting make up a much larger portion of daily life.

Additionally, the data on household and commuting activity came from a very small number of studies. This means the statistical estimates for these two categories are less certain than the estimates for recreational and occupational movement. The researchers also noted high statistical variation among the studies, meaning that not all jobs or recreational activities are equal in intensity or impact.

Another thing to consider is how the data was collected. The vast majority of the studies relied on participants remembering and self-reporting their own activity levels via questionnaires. People are not always accurate when estimating how much they move, which can introduce errors into the data. Wearable fitness trackers might provide better data in the future, though current devices struggle to distinguish between a recreational jog and a physically demanding shift at work.

Finally, the observational nature of the included studies means scientists cannot completely rule out reverse causation. People might naturally slow down and move less as the early, undetected stages of dementia begin to affect their bodies. While some of the studies attempted to account for this by excluding people who developed dementia shortly after the research began, more long-term tracking is required to fully untangle the timeline of cause and effect.

“The most important caveat is that the included studies were observational,” Feter cautioned. “Therefore, our findings show associations but cannot establish that occupational physical activity directly causes dementia.”

“This review included only observational studies with physical activity assessed at the study baseline,” Haapala agreed. “Therefore, this research does not provide information whether increases or decreases in physical activity during the follow-up contributed to the results.”

“Although the review showed associations between physical activity and dementia risk, the authors graded the level of evidence as very low to low, meaning that the authors think that the true values may deviate from the reported range,” Haapala added. “Therefore, it is possible that new research can change the conclusions of this research. Nevertheless, the evidence is based on a large sample of over four million participants, and the results and direction of the associations remained consistent also in the sensitivity analyses.”

Looking ahead, the researchers hope to investigate the specific workplace factors driving these patterns. “We want to better understand which characteristics of occupational activity and working conditions may explain the observed association,” Feter said. “Studies using objective measures of activity and more detailed information about workplace exposures will be especially important.”

Haapala highlighted another area for future research. “Most previous studies, including the review, have focused on aerobic physical activity,” he said. “There is limited evidence how muscle strengthening physical activity or resistance training have similar beneficial associations.”

“The broader lesson is that public-health messages may need to move beyond simply telling people to ‘move more,'” Feter concluded. “Promoting access to safe and enjoyable opportunities for leisure-time activity, while also improving working conditions and ensuring sufficient recovery for people in physically demanding occupations, may be important components of dementia prevention.”

The study, “Domain-specific physical activity levels and risk of dementia: a systematic review and meta-analysis,” was authored by Natan Feter, Paula Iso-Markku, Tiladia Markarian, Dylan M Luong, Jack Gunnink, Natália Schröder, Eduardo Lucia Caputo, Jayne Feter, Anamika Nanda, Sarah Hourihan, Gustavo S da Silva, Ashley Ventura, Daniela Benzano Bumaguin, Yann C Klimentidis, Gene E Alexander, Daniel Umpierre, Pedro C Hallal, Airton José Rombaldi, and David A Raichlen.

URL: https://www.psypost.org/massive-study-reveals-a-physical-activity-paradox-in-dementia-risk/

-------------------------------------------------

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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #dementiarisk #physicalactivityparadox #recreationalexercise #occupationalhealth #activecommuting #brainhealth #leisuretimeexercise #publichealth #vasculardementia #Alzheimersrisk

DATE: September 8, 2026 at 08:00AM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------

TITLE: Massive study reveals a “physical activity paradox” in dementia risk

URL: https://www.psypost.org/massive-study-reveals-a-physical-activity-paradox-in-dementia-risk/

Staying active is widely recommended to protect the brain from decline as people age, but the context in which that movement happens seems to matter. A large new data analysis indicates that while recreational exercise and household chores are linked to a lower risk of developing dementia, physically demanding jobs and active commuting might actually increase that risk. The findings were published in The Lancet Public Health.

Dementia is a broad category of conditions characterized by a gradual loss of memory, thinking skills, and the ability to perform daily tasks. Because there are limited medical treatments for the condition, public health professionals focus heavily on prevention through lifestyle habits. Physical activity is one of the primary habits recommended to keep the brain healthy. However, human movement is divided into distinct categories depending on the context. These categories include recreational time, work duties, household chores, and transportation.

The research was motivated by a gap in how scientists understand movement and brain health. Most public health guidelines are based on studies of recreational exercise. Moving the body outside of work definitely has brain benefits. For instance, a 2025 study of older adults in China found that people who regularly spent time outdoors experienced a lower likelihood of developing dementia. But recreational exercise only accounts for a tiny fraction of total global physical activity.

“We have known for years that physical activity is generally associated with a lower risk of dementia, but most studies treat all movement as though it were the same,” Natan Feter, a postdoctoral research associate in the Human and Evolutionary Biology Department at the University of Southern California and a researcher in the Graduate Program in Epidemiology at the Federal University of Rio Grande do Sul in Brazil, told PsyPost. “Evidence from cardiovascular research suggests a ‘physical activity paradox,’ in which leisure-time exercise provides health benefits while physically demanding work may not. We wanted to determine whether this paradox also applies to dementia risk.”

In reality, the vast majority of human energy expenditure happens during work, commuting, and home maintenance. This is especially true in lower-income countries, where recreational exercise is far less common. Because dementia rates are expected to climb drastically in these regions over the next few decades, the authors wanted to synthesize existing research to see if the protective benefits of physical activity apply across all areas of daily life.

To answer this question, the researchers conducted a systematic review and meta-analysis. This process involves gathering all the available scientific literature on a topic, filtering out studies that do not meet strict quality standards, and statistically combining the data from the remaining studies. They searched multiple scientific databases for studies published up to May 2026. They specifically looked for studies that measured physical activity in adults who did not have cognitive issues at the start, and then tracked those individuals for at least one year to see who developed dementia.

The final analysis included 74 observational studies. The combined sample size was enormous, encompassing over 4.2 million participants across 30 different countries. The participants had a median age of 67 at the start of their respective studies, and there was a relatively even split between men and women. The researchers followed these participants for a median duration of 10 years. During that time, over 64,000 cases of all-cause dementia were diagnosed.

Overall, high levels of physical activity were associated with a lower chance of cognitive decline. Compared to the least active individuals, those with high overall physical activity had a 20 percent lower risk of developing all-cause dementia. The risk dropped by 21 percent for Alzheimer’s disease and 29 percent for vascular dementia, a type of cognitive decline caused by reduced blood flow to the brain.

However, breaking the numbers down by the context of the activity painted a much more complex picture. High levels of recreational physical activity were linked to a 24 percent lower risk of all-cause dementia. Household chores also showed a protective trend, linked to a 15 percent drop in risk.

On the other hand, occupational physical activity was associated with a 20 percent higher risk of developing dementia. Active commuting, such as walking or cycling to work, also correlated with a 10 percent increase in risk. When the researchers looked at how the amount of activity influenced these outcomes, they found that the protective benefits of recreational exercise leveled off after a certain point. For occupational activity, the risk of dementia increased alongside the amount of physical labor required by the job.

“The contrasting patterns were particularly striking,” Feter noted. “As leisure-time physical activity increased, dementia risk progressively declined before plateauing, while occupational physical activity showed the opposite pattern.” Ultimately, he added, “These findings support making time for enjoyable, voluntary physical activity, even for people whose jobs are already physically demanding.”

“The main message is clear: as physical activity and especially leisure-time physical activity was related to lower risk of dementia, one of the easiest ways to maintain and improve brain health across the lifespan is to be active during leisure time,” Eero Haapala, a senior researcher at the Preventive Health Unit at the South-Eastern Finland University of Applied Sciences and a research director at the Institute of Biomedicine at the University of Eastern Finland who was not involved in the study, told PsyPost.

“This review is also among the first to look at the domain-specific associations providing more nuanced information whether the context or place where physical [activity] takes place is an important consideration in the associations between physical activity and dementia risk,” Haapala added. “Compared to previous reviews, this study includes substantially higher sample size.”

While the findings offer a promising strategy for maintaining brain health, the researchers stressed that lifestyle habits are only part of the equation. “A 24% lower relative risk associated with leisure-time physical activity is meaningful at the population level, particularly because dementia is common and currently has limited treatment options,” Feter explained. “However, this represents a relative difference between groups, not a guarantee that an active individual will not develop dementia. A person’s absolute risk also depends on age, genetics, cardiovascular health, education, and several other factors.”

The findings regarding recreational exercise are in line with research covered by PsyPost in 2016, which found that leisure-time physical activities were associated with a reduced risk of Alzheimer’s disease. Other recent work also points in the same direction. For instance, a study covered by PsyPost in 2025 found that higher activity levels lowered dementia risk, though that study measured overall device-tracked movement rather than separating the data into specific domains like work or leisure.

Similarly, a 2026 study covered by PsyPost indicated that objectively measured cardiovascular health is tied to a reduced risk of cognitive decline, which complements the idea that beneficial forms of movement protect the brain.

The authors propose several reasons why physical labor at work might be linked to worse brain health. First, physically demanding jobs often come with high psychological stress, lower wages, and reduced autonomy. Workers in these roles might also face elevated exposure to environmental hazards like noise and air pollution, which are known threats to brain health. Finally, many manual labor jobs involve highly repetitive tasks that do not stimulate the brain in ways that build cognitive resilience.

Feter elaborated on this point, noting that the higher risk could also stem from “insufficient recovery” and “limited control over one’s work.” But he emphasized that “the findings should not be interpreted as advice for people to avoid movement at work.” “Rather, they suggest that occupational activity may not offer the same benefits as voluntary exercise and should not necessarily be considered a substitute for leisure-time activity,” he added.

“While the study found that occupational physical activity was related to higher dementia risk, this does not mean that all occupations with some physical demands are automatically bad for the brain health,” Haapala pointed out. “This finding calls for the employers to examine whether physically demanding jobs also include other stressors that could negatively affect brain health.”

Active commuting might carry similar risks, as walking or cycling to work is sometimes an economic necessity rather than a recreational choice, and it frequently exposes commuters to heavy traffic exhaust.

“What is interesting and against, for example WHO’s policy brief concluding that active mobility, i.e., commuting physical activity, may prevent cognitive decline, is that the evidence from the current review suggested that higher levels of commuting physical activity are related to higher risk of all-cause dementia,” Haapala explained. “While this negative influence of commuting physical activity may not be due to physical activity itself but influenced by air pollution or some other unmeasured factors, these findings suggest that promoting active commuting may not be the most effective way to improve brain health and prevent dementia.”

As with all research, there are a few things to keep in mind. The most glaring issue is a massive geographical mismatch in the data. Over 90 percent of the studies included in this analysis were conducted in high-income countries like the United States, the United Kingdom, Sweden, and Finland. Very little data came from lower-income and middle-income regions. This is a problem because dementia rates are expected to grow fastest in the developing world, where manual labor and active commuting make up a much larger portion of daily life.

Additionally, the data on household and commuting activity came from a very small number of studies. This means the statistical estimates for these two categories are less certain than the estimates for recreational and occupational movement. The researchers also noted high statistical variation among the studies, meaning that not all jobs or recreational activities are equal in intensity or impact.

Another thing to consider is how the data was collected. The vast majority of the studies relied on participants remembering and self-reporting their own activity levels via questionnaires. People are not always accurate when estimating how much they move, which can introduce errors into the data. Wearable fitness trackers might provide better data in the future, though current devices struggle to distinguish between a recreational jog and a physically demanding shift at work.

Finally, the observational nature of the included studies means scientists cannot completely rule out reverse causation. People might naturally slow down and move less as the early, undetected stages of dementia begin to affect their bodies. While some of the studies attempted to account for this by excluding people who developed dementia shortly after the research began, more long-term tracking is required to fully untangle the timeline of cause and effect.

“The most important caveat is that the included studies were observational,” Feter cautioned. “Therefore, our findings show associations but cannot establish that occupational physical activity directly causes dementia.”

“This review included only observational studies with physical activity assessed at the study baseline,” Haapala agreed. “Therefore, this research does not provide information whether increases or decreases in physical activity during the follow-up contributed to the results.”

“Although the review showed associations between physical activity and dementia risk, the authors graded the level of evidence as very low to low, meaning that the authors think that the true values may deviate from the reported range,” Haapala added. “Therefore, it is possible that new research can change the conclusions of this research. Nevertheless, the evidence is based on a large sample of over four million participants, and the results and direction of the associations remained consistent also in the sensitivity analyses.”

Looking ahead, the researchers hope to investigate the specific workplace factors driving these patterns. “We want to better understand which characteristics of occupational activity and working conditions may explain the observed association,” Feter said. “Studies using objective measures of activity and more detailed information about workplace exposures will be especially important.”

Haapala highlighted another area for future research. “Most previous studies, including the review, have focused on aerobic physical activity,” he said. “There is limited evidence how muscle strengthening physical activity or resistance training have similar beneficial associations.”

“The broader lesson is that public-health messages may need to move beyond simply telling people to ‘move more,'” Feter concluded. “Promoting access to safe and enjoyable opportunities for leisure-time activity, while also improving working conditions and ensuring sufficient recovery for people in physically demanding occupations, may be important components of dementia prevention.”

The study, “Domain-specific physical activity levels and risk of dementia: a systematic review and meta-analysis,” was authored by Natan Feter, Paula Iso-Markku, Tiladia Markarian, Dylan M Luong, Jack Gunnink, Natália Schröder, Eduardo Lucia Caputo, Jayne Feter, Anamika Nanda, Sarah Hourihan, Gustavo S da Silva, Ashley Ventura, Daniela Benzano Bumaguin, Yann C Klimentidis, Gene E Alexander, Daniel Umpierre, Pedro C Hallal, Airton José Rombaldi, and David A Raichlen.

URL: https://www.psypost.org/massive-study-reveals-a-physical-activity-paradox-in-dementia-risk/

-------------------------------------------------

Private, vetted email list for mental health professionals: https://www.clinicians-exchange.org

Unofficial Psychology Today Xitter to toot feed at Psych Today Unofficial Bot @PTUnofficialBot

-------------------------------------------------

#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #dementiarisk #physicalactivityparadox #recreationalexercise #occupationalhealth #activecommuting #brainhealth #leisuretimeexercise #publichealth #vasculardementia #Alzheimersrisk

DATE: September 8, 2026 at 08:00AM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------

TITLE: Massive study reveals a “physical activity paradox” in dementia risk

URL: https://www.psypost.org/massive-study-reveals-a-physical-activity-paradox-in-dementia-risk/

Staying active is widely recommended to protect the brain from decline as people age, but the context in which that movement happens seems to matter. A large new data analysis indicates that while recreational exercise and household chores are linked to a lower risk of developing dementia, physically demanding jobs and active commuting might actually increase that risk. The findings were published in The Lancet Public Health.

Dementia is a broad category of conditions characterized by a gradual loss of memory, thinking skills, and the ability to perform daily tasks. Because there are limited medical treatments for the condition, public health professionals focus heavily on prevention through lifestyle habits. Physical activity is one of the primary habits recommended to keep the brain healthy. However, human movement is divided into distinct categories depending on the context. These categories include recreational time, work duties, household chores, and transportation.

The research was motivated by a gap in how scientists understand movement and brain health. Most public health guidelines are based on studies of recreational exercise. Moving the body outside of work definitely has brain benefits. For instance, a 2025 study of older adults in China found that people who regularly spent time outdoors experienced a lower likelihood of developing dementia. But recreational exercise only accounts for a tiny fraction of total global physical activity.

“We have known for years that physical activity is generally associated with a lower risk of dementia, but most studies treat all movement as though it were the same,” Natan Feter, a postdoctoral research associate in the Human and Evolutionary Biology Department at the University of Southern California and a researcher in the Graduate Program in Epidemiology at the Federal University of Rio Grande do Sul in Brazil, told PsyPost. “Evidence from cardiovascular research suggests a ‘physical activity paradox,’ in which leisure-time exercise provides health benefits while physically demanding work may not. We wanted to determine whether this paradox also applies to dementia risk.”

In reality, the vast majority of human energy expenditure happens during work, commuting, and home maintenance. This is especially true in lower-income countries, where recreational exercise is far less common. Because dementia rates are expected to climb drastically in these regions over the next few decades, the authors wanted to synthesize existing research to see if the protective benefits of physical activity apply across all areas of daily life.

To answer this question, the researchers conducted a systematic review and meta-analysis. This process involves gathering all the available scientific literature on a topic, filtering out studies that do not meet strict quality standards, and statistically combining the data from the remaining studies. They searched multiple scientific databases for studies published up to May 2026. They specifically looked for studies that measured physical activity in adults who did not have cognitive issues at the start, and then tracked those individuals for at least one year to see who developed dementia.

The final analysis included 74 observational studies. The combined sample size was enormous, encompassing over 4.2 million participants across 30 different countries. The participants had a median age of 67 at the start of their respective studies, and there was a relatively even split between men and women. The researchers followed these participants for a median duration of 10 years. During that time, over 64,000 cases of all-cause dementia were diagnosed.

Overall, high levels of physical activity were associated with a lower chance of cognitive decline. Compared to the least active individuals, those with high overall physical activity had a 20 percent lower risk of developing all-cause dementia. The risk dropped by 21 percent for Alzheimer’s disease and 29 percent for vascular dementia, a type of cognitive decline caused by reduced blood flow to the brain.

However, breaking the numbers down by the context of the activity painted a much more complex picture. High levels of recreational physical activity were linked to a 24 percent lower risk of all-cause dementia. Household chores also showed a protective trend, linked to a 15 percent drop in risk.

On the other hand, occupational physical activity was associated with a 20 percent higher risk of developing dementia. Active commuting, such as walking or cycling to work, also correlated with a 10 percent increase in risk. When the researchers looked at how the amount of activity influenced these outcomes, they found that the protective benefits of recreational exercise leveled off after a certain point. For occupational activity, the risk of dementia increased alongside the amount of physical labor required by the job.

“The contrasting patterns were particularly striking,” Feter noted. “As leisure-time physical activity increased, dementia risk progressively declined before plateauing, while occupational physical activity showed the opposite pattern.” Ultimately, he added, “These findings support making time for enjoyable, voluntary physical activity, even for people whose jobs are already physically demanding.”

“The main message is clear: as physical activity and especially leisure-time physical activity was related to lower risk of dementia, one of the easiest ways to maintain and improve brain health across the lifespan is to be active during leisure time,” Eero Haapala, a senior researcher at the Preventive Health Unit at the South-Eastern Finland University of Applied Sciences and a research director at the Institute of Biomedicine at the University of Eastern Finland who was not involved in the study, told PsyPost.

“This review is also among the first to look at the domain-specific associations providing more nuanced information whether the context or place where physical [activity] takes place is an important consideration in the associations between physical activity and dementia risk,” Haapala added. “Compared to previous reviews, this study includes substantially higher sample size.”

While the findings offer a promising strategy for maintaining brain health, the researchers stressed that lifestyle habits are only part of the equation. “A 24% lower relative risk associated with leisure-time physical activity is meaningful at the population level, particularly because dementia is common and currently has limited treatment options,” Feter explained. “However, this represents a relative difference between groups, not a guarantee that an active individual will not develop dementia. A person’s absolute risk also depends on age, genetics, cardiovascular health, education, and several other factors.”

The findings regarding recreational exercise are in line with research covered by PsyPost in 2016, which found that leisure-time physical activities were associated with a reduced risk of Alzheimer’s disease. Other recent work also points in the same direction. For instance, a study covered by PsyPost in 2025 found that higher activity levels lowered dementia risk, though that study measured overall device-tracked movement rather than separating the data into specific domains like work or leisure.

Similarly, a 2026 study covered by PsyPost indicated that objectively measured cardiovascular health is tied to a reduced risk of cognitive decline, which complements the idea that beneficial forms of movement protect the brain.

The authors propose several reasons why physical labor at work might be linked to worse brain health. First, physically demanding jobs often come with high psychological stress, lower wages, and reduced autonomy. Workers in these roles might also face elevated exposure to environmental hazards like noise and air pollution, which are known threats to brain health. Finally, many manual labor jobs involve highly repetitive tasks that do not stimulate the brain in ways that build cognitive resilience.

Feter elaborated on this point, noting that the higher risk could also stem from “insufficient recovery” and “limited control over one’s work.” But he emphasized that “the findings should not be interpreted as advice for people to avoid movement at work.” “Rather, they suggest that occupational activity may not offer the same benefits as voluntary exercise and should not necessarily be considered a substitute for leisure-time activity,” he added.

“While the study found that occupational physical activity was related to higher dementia risk, this does not mean that all occupations with some physical demands are automatically bad for the brain health,” Haapala pointed out. “This finding calls for the employers to examine whether physically demanding jobs also include other stressors that could negatively affect brain health.”

Active commuting might carry similar risks, as walking or cycling to work is sometimes an economic necessity rather than a recreational choice, and it frequently exposes commuters to heavy traffic exhaust.

“What is interesting and against, for example WHO’s policy brief concluding that active mobility, i.e., commuting physical activity, may prevent cognitive decline, is that the evidence from the current review suggested that higher levels of commuting physical activity are related to higher risk of all-cause dementia,” Haapala explained. “While this negative influence of commuting physical activity may not be due to physical activity itself but influenced by air pollution or some other unmeasured factors, these findings suggest that promoting active commuting may not be the most effective way to improve brain health and prevent dementia.”

As with all research, there are a few things to keep in mind. The most glaring issue is a massive geographical mismatch in the data. Over 90 percent of the studies included in this analysis were conducted in high-income countries like the United States, the United Kingdom, Sweden, and Finland. Very little data came from lower-income and middle-income regions. This is a problem because dementia rates are expected to grow fastest in the developing world, where manual labor and active commuting make up a much larger portion of daily life.

Additionally, the data on household and commuting activity came from a very small number of studies. This means the statistical estimates for these two categories are less certain than the estimates for recreational and occupational movement. The researchers also noted high statistical variation among the studies, meaning that not all jobs or recreational activities are equal in intensity or impact.

Another thing to consider is how the data was collected. The vast majority of the studies relied on participants remembering and self-reporting their own activity levels via questionnaires. People are not always accurate when estimating how much they move, which can introduce errors into the data. Wearable fitness trackers might provide better data in the future, though current devices struggle to distinguish between a recreational jog and a physically demanding shift at work.

Finally, the observational nature of the included studies means scientists cannot completely rule out reverse causation. People might naturally slow down and move less as the early, undetected stages of dementia begin to affect their bodies. While some of the studies attempted to account for this by excluding people who developed dementia shortly after the research began, more long-term tracking is required to fully untangle the timeline of cause and effect.

“The most important caveat is that the included studies were observational,” Feter cautioned. “Therefore, our findings show associations but cannot establish that occupational physical activity directly causes dementia.”

“This review included only observational studies with physical activity assessed at the study baseline,” Haapala agreed. “Therefore, this research does not provide information whether increases or decreases in physical activity during the follow-up contributed to the results.”

“Although the review showed associations between physical activity and dementia risk, the authors graded the level of evidence as very low to low, meaning that the authors think that the true values may deviate from the reported range,” Haapala added. “Therefore, it is possible that new research can change the conclusions of this research. Nevertheless, the evidence is based on a large sample of over four million participants, and the results and direction of the associations remained consistent also in the sensitivity analyses.”

Looking ahead, the researchers hope to investigate the specific workplace factors driving these patterns. “We want to better understand which characteristics of occupational activity and working conditions may explain the observed association,” Feter said. “Studies using objective measures of activity and more detailed information about workplace exposures will be especially important.”

Haapala highlighted another area for future research. “Most previous studies, including the review, have focused on aerobic physical activity,” he said. “There is limited evidence how muscle strengthening physical activity or resistance training have similar beneficial associations.”

“The broader lesson is that public-health messages may need to move beyond simply telling people to ‘move more,'” Feter concluded. “Promoting access to safe and enjoyable opportunities for leisure-time activity, while also improving working conditions and ensuring sufficient recovery for people in physically demanding occupations, may be important components of dementia prevention.”

The study, “Domain-specific physical activity levels and risk of dementia: a systematic review and meta-analysis,” was authored by Natan Feter, Paula Iso-Markku, Tiladia Markarian, Dylan M Luong, Jack Gunnink, Natália Schröder, Eduardo Lucia Caputo, Jayne Feter, Anamika Nanda, Sarah Hourihan, Gustavo S da Silva, Ashley Ventura, Daniela Benzano Bumaguin, Yann C Klimentidis, Gene E Alexander, Daniel Umpierre, Pedro C Hallal, Airton José Rombaldi, and David A Raichlen.

URL: https://www.psypost.org/massive-study-reveals-a-physical-activity-paradox-in-dementia-risk/

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DATE: September 6, 2026 at 01:07PM
SOURCE: SCIENCE DAILY PSYCHIATIRY FEED

TITLE: This lifestyle program improved cognition 55% more than basic health advice

URL: https://www.sciencedaily.com/releases/2026/09/260903064246.htm

Older adults at risk of dementia improved their memory and thinking after following lifestyle programs combining exercise, healthy eating, cognitive training, and social engagement. Those who received regular coaching and structured support improved substantially more than participants given general health advice.

URL: https://www.sciencedaily.com/releases/2026/09/260903064246.htm

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DATE: September 6, 2026 at 01:07PM
SOURCE: SCIENCE DAILY PSYCHIATIRY FEED

TITLE: This lifestyle program improved cognition 55% more than basic health advice

URL: https://www.sciencedaily.com/releases/2026/09/260903064246.htm

Older adults at risk of dementia improved their memory and thinking after following lifestyle programs combining exercise, healthy eating, cognitive training, and social engagement. Those who received regular coaching and structured support improved substantially more than participants given general health advice.

URL: https://www.sciencedaily.com/releases/2026/09/260903064246.htm

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DATE: September 6, 2026 at 01:07PM
SOURCE: SCIENCE DAILY PSYCHIATIRY FEED

TITLE: This lifestyle program improved cognition 55% more than basic health advice

URL: https://www.sciencedaily.com/releases/2026/09/260903064246.htm

Older adults at risk of dementia improved their memory and thinking after following lifestyle programs combining exercise, healthy eating, cognitive training, and social engagement. Those who received regular coaching and structured support improved substantially more than participants given general health advice.

URL: https://www.sciencedaily.com/releases/2026/09/260903064246.htm

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DATE: September 1, 2026 at 08:09AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Reaching 90 without dementia doesn’t mean you’re in the clear

URL: https://www.sciencedaily.com/releases/2026/08/260829235953.htm

A study of people over 90 found that dementia risk remains strongly shaped by sex, race and genetics, with women and black participants facing notably higher risks. Intriguingly, some people stayed cognitively healthy despite carrying major risk factors, potentially offering clues to how the brain can resist dementia deep into old age.

URL: https://www.sciencedaily.com/releases/2026/08/260829235953.htm

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DATE: September 1, 2026 at 08:09AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Reaching 90 without dementia doesn’t mean you’re in the clear

URL: https://www.sciencedaily.com/releases/2026/08/260829235953.htm

A study of people over 90 found that dementia risk remains strongly shaped by sex, race and genetics, with women and black participants facing notably higher risks. Intriguingly, some people stayed cognitively healthy despite carrying major risk factors, potentially offering clues to how the brain can resist dementia deep into old age.

URL: https://www.sciencedaily.com/releases/2026/08/260829235953.htm

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DATE: September 1, 2026 at 08:09AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Reaching 90 without dementia doesn’t mean you’re in the clear

URL: https://www.sciencedaily.com/releases/2026/08/260829235953.htm

A study of people over 90 found that dementia risk remains strongly shaped by sex, race and genetics, with women and black participants facing notably higher risks. Intriguingly, some people stayed cognitively healthy despite carrying major risk factors, potentially offering clues to how the brain can resist dementia deep into old age.

URL: https://www.sciencedaily.com/releases/2026/08/260829235953.htm

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DATE: August 27, 2026 at 02:00PM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------

TITLE: Stiffer arteries are associated with higher risk of dementia in older adults

URL: https://www.psypost.org/stiffer-arteries-are-associated-with-higher-risk-of-dementia-in-older-adults/

An analysis of the Atherosclerosis Risk in Communities (ARIC) cohort study data showed that individuals with stiffer arteries were at a higher risk of developing dementia over time. Arterial stiffness was measured through the speed at which pressure generated by heartbeats travels through arteries. The paper was published in Alzheimer’s Dementia.

Arterial stiffness refers to the loss of elasticity of the large arteries, which makes them less able to expand and recoil as blood is pumped through them with each heartbeat. In healthy younger people, elastic arteries help cushion the pressure generated by the heart and maintain a relatively smooth flow of blood through the circulation. With increasing age, however, arterial walls gradually become stiffer as elastin fibers deteriorate, collagen becomes more prominent, and structural changes such as calcification accumulate.

In older adults, some increase in arterial stiffness is therefore a normal consequence of vascular aging, although its extent varies substantially between individuals. Excessive arterial stiffness increases the pressure experienced by the heart and by small blood vessels in organs such as the brain and kidneys and is associated with an increased risk of cardiovascular disease. It should be noted that, apart from age, arterial stiffness is also influenced by blood pressure, inflammation, metabolic factors, smoking, diabetes, kidney disease, and various other factors.

One of the most widely used ways of assessing arterial stiffness is measuring pulse wave velocity (PWV), i.e., measuring how quickly the pressure wave created by a heartbeat travels along an artery. Because compliant arteries expand as the wave passes through them, they slow its propagation, whereas stiff arteries transmit the wave more rapidly. Consequently, a higher PWV generally indicates greater arterial stiffness.

Study author Jenna Barbee and her colleagues analyzed data from the Atherosclerosis Risk in Communities (ARIC) Neurocognitive Study (ARIC-NCS) to explore the associations between arterial stiffness and subsequent development of dementia. ARIC is a community-based cohort study of predominantly Black or White adults from four U.S. communities Washington County, Maryland; Forsyth County, North Carolina; Minneapolis, Minnesota; and Jackson, Mississippi.

The ARIC study initially involved 15,792 participants between 45 and 64 years of age, recruited between 1987 and 1989. This was followed by three initial assessments every three years and several subsequent assessments years later, with the most recent being in 2021 and 2022, when 2,105 participants remained in the study.

This analysis used data collected between 2011 and 2022, with the data collected between 2011 and 2013 serving as baseline measures (measures at the start of the study). The 2011-2013 data collection was the fifth data collection wave of the study and it included 6,538 participants.

After excluding participants who had already developed dementia and a number of participants with missing measurements and various other disqualifying characteristics, the analysis was based on 4,818 participants. Their average age at the start of the analytic period was 75 years. Fifty-nine percent of them were women.

The study primarily assessed participants’ arterial stiffness through carotid-femoral pulse wave velocity (cfPWV), which means that they measured how quickly the arterial pressure wave travels between the carotid artery in the neck and the femoral artery in the groin. Study authors hypothesized that individuals in which this wave travels faster (meaning that their arteries are stiffer) would be more likely to develop dementia later in life.

Participants’ cfPWV in this study was measured using an automated waveform analyzer and a segmometer (a tool similar to a tape measure used to measure body segments) after participants were lying on their backs for 5 to 10 minutes. The study also recorded whether participants developed dementia in each data collection wave.

Results showed that, during the examined period (a median follow-up of nine years), 22% of participants developed dementia. As expected, higher cfPWV was associated with greater dementia risk. Similarly, other pulse wave velocity measures such as total pulse wave velocity, structural pulse wave velocity, and load-dependent pulse wave velocity were also associated with greater dementia risk.

Total pulse wave velocity reflects overall arterial stiffness, structural pulse wave velocity reflects the intrinsic stiffness of the arterial wall independent of current pressure, and load-dependent pulse wave velocity reflects the portion of stiffness caused by the artery being stretched by the prevailing blood pressure.

“Arterial stiffness, measured through PWV [pulse wave velocity], is longitudinally associated with increased incidence and a greater risk of all-cause dementia. Associations between arterial stiffness and dementia risk may be driven by both age-related structural remodeling of the arterial wall and increases in arterial stiffness due to elevated blood pressure levels, especially in older populations with a high burden of cardiometabolic risk factors,” study authors concluded.

The study contributes to the scientific knowledge about links between cardio-vascular changes and cognitive functioning. However, it should be noted that the design of the study does not allow any definitive causal inferences to be derived from the results.

The paper, “Arterial stiffness and risk of dementia in late life: The ARIC neurocognitive study,” was authored by Jenna Barbee, James Russell Pike, Jingkai Wei, Hirofumi Tanaka, David S. Knopman, Anna Kucharska-Newton, A. Richey Sharrett, Timothy M. Hughes, Kunihiro Matsushita, Thomas H. Mosley, Michelle L. Meyer, and Priya Palta.

URL: https://www.psypost.org/stiffer-arteries-are-associated-with-higher-risk-of-dementia-in-older-adults/

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DATE: August 27, 2026 at 02:00PM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------

TITLE: Stiffer arteries are associated with higher risk of dementia in older adults

URL: https://www.psypost.org/stiffer-arteries-are-associated-with-higher-risk-of-dementia-in-older-adults/

An analysis of the Atherosclerosis Risk in Communities (ARIC) cohort study data showed that individuals with stiffer arteries were at a higher risk of developing dementia over time. Arterial stiffness was measured through the speed at which pressure generated by heartbeats travels through arteries. The paper was published in Alzheimer’s Dementia.

Arterial stiffness refers to the loss of elasticity of the large arteries, which makes them less able to expand and recoil as blood is pumped through them with each heartbeat. In healthy younger people, elastic arteries help cushion the pressure generated by the heart and maintain a relatively smooth flow of blood through the circulation. With increasing age, however, arterial walls gradually become stiffer as elastin fibers deteriorate, collagen becomes more prominent, and structural changes such as calcification accumulate.

In older adults, some increase in arterial stiffness is therefore a normal consequence of vascular aging, although its extent varies substantially between individuals. Excessive arterial stiffness increases the pressure experienced by the heart and by small blood vessels in organs such as the brain and kidneys and is associated with an increased risk of cardiovascular disease. It should be noted that, apart from age, arterial stiffness is also influenced by blood pressure, inflammation, metabolic factors, smoking, diabetes, kidney disease, and various other factors.

One of the most widely used ways of assessing arterial stiffness is measuring pulse wave velocity (PWV), i.e., measuring how quickly the pressure wave created by a heartbeat travels along an artery. Because compliant arteries expand as the wave passes through them, they slow its propagation, whereas stiff arteries transmit the wave more rapidly. Consequently, a higher PWV generally indicates greater arterial stiffness.

Study author Jenna Barbee and her colleagues analyzed data from the Atherosclerosis Risk in Communities (ARIC) Neurocognitive Study (ARIC-NCS) to explore the associations between arterial stiffness and subsequent development of dementia. ARIC is a community-based cohort study of predominantly Black or White adults from four U.S. communities Washington County, Maryland; Forsyth County, North Carolina; Minneapolis, Minnesota; and Jackson, Mississippi.

The ARIC study initially involved 15,792 participants between 45 and 64 years of age, recruited between 1987 and 1989. This was followed by three initial assessments every three years and several subsequent assessments years later, with the most recent being in 2021 and 2022, when 2,105 participants remained in the study.

This analysis used data collected between 2011 and 2022, with the data collected between 2011 and 2013 serving as baseline measures (measures at the start of the study). The 2011-2013 data collection was the fifth data collection wave of the study and it included 6,538 participants.

After excluding participants who had already developed dementia and a number of participants with missing measurements and various other disqualifying characteristics, the analysis was based on 4,818 participants. Their average age at the start of the analytic period was 75 years. Fifty-nine percent of them were women.

The study primarily assessed participants’ arterial stiffness through carotid-femoral pulse wave velocity (cfPWV), which means that they measured how quickly the arterial pressure wave travels between the carotid artery in the neck and the femoral artery in the groin. Study authors hypothesized that individuals in which this wave travels faster (meaning that their arteries are stiffer) would be more likely to develop dementia later in life.

Participants’ cfPWV in this study was measured using an automated waveform analyzer and a segmometer (a tool similar to a tape measure used to measure body segments) after participants were lying on their backs for 5 to 10 minutes. The study also recorded whether participants developed dementia in each data collection wave.

Results showed that, during the examined period (a median follow-up of nine years), 22% of participants developed dementia. As expected, higher cfPWV was associated with greater dementia risk. Similarly, other pulse wave velocity measures such as total pulse wave velocity, structural pulse wave velocity, and load-dependent pulse wave velocity were also associated with greater dementia risk.

Total pulse wave velocity reflects overall arterial stiffness, structural pulse wave velocity reflects the intrinsic stiffness of the arterial wall independent of current pressure, and load-dependent pulse wave velocity reflects the portion of stiffness caused by the artery being stretched by the prevailing blood pressure.

“Arterial stiffness, measured through PWV [pulse wave velocity], is longitudinally associated with increased incidence and a greater risk of all-cause dementia. Associations between arterial stiffness and dementia risk may be driven by both age-related structural remodeling of the arterial wall and increases in arterial stiffness due to elevated blood pressure levels, especially in older populations with a high burden of cardiometabolic risk factors,” study authors concluded.

The study contributes to the scientific knowledge about links between cardio-vascular changes and cognitive functioning. However, it should be noted that the design of the study does not allow any definitive causal inferences to be derived from the results.

The paper, “Arterial stiffness and risk of dementia in late life: The ARIC neurocognitive study,” was authored by Jenna Barbee, James Russell Pike, Jingkai Wei, Hirofumi Tanaka, David S. Knopman, Anna Kucharska-Newton, A. Richey Sharrett, Timothy M. Hughes, Kunihiro Matsushita, Thomas H. Mosley, Michelle L. Meyer, and Priya Palta.

URL: https://www.psypost.org/stiffer-arteries-are-associated-with-higher-risk-of-dementia-in-older-adults/

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DATE: August 27, 2026 at 02:00PM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------

TITLE: Stiffer arteries are associated with higher risk of dementia in older adults

URL: https://www.psypost.org/stiffer-arteries-are-associated-with-higher-risk-of-dementia-in-older-adults/

An analysis of the Atherosclerosis Risk in Communities (ARIC) cohort study data showed that individuals with stiffer arteries were at a higher risk of developing dementia over time. Arterial stiffness was measured through the speed at which pressure generated by heartbeats travels through arteries. The paper was published in Alzheimer’s Dementia.

Arterial stiffness refers to the loss of elasticity of the large arteries, which makes them less able to expand and recoil as blood is pumped through them with each heartbeat. In healthy younger people, elastic arteries help cushion the pressure generated by the heart and maintain a relatively smooth flow of blood through the circulation. With increasing age, however, arterial walls gradually become stiffer as elastin fibers deteriorate, collagen becomes more prominent, and structural changes such as calcification accumulate.

In older adults, some increase in arterial stiffness is therefore a normal consequence of vascular aging, although its extent varies substantially between individuals. Excessive arterial stiffness increases the pressure experienced by the heart and by small blood vessels in organs such as the brain and kidneys and is associated with an increased risk of cardiovascular disease. It should be noted that, apart from age, arterial stiffness is also influenced by blood pressure, inflammation, metabolic factors, smoking, diabetes, kidney disease, and various other factors.

One of the most widely used ways of assessing arterial stiffness is measuring pulse wave velocity (PWV), i.e., measuring how quickly the pressure wave created by a heartbeat travels along an artery. Because compliant arteries expand as the wave passes through them, they slow its propagation, whereas stiff arteries transmit the wave more rapidly. Consequently, a higher PWV generally indicates greater arterial stiffness.

Study author Jenna Barbee and her colleagues analyzed data from the Atherosclerosis Risk in Communities (ARIC) Neurocognitive Study (ARIC-NCS) to explore the associations between arterial stiffness and subsequent development of dementia. ARIC is a community-based cohort study of predominantly Black or White adults from four U.S. communities Washington County, Maryland; Forsyth County, North Carolina; Minneapolis, Minnesota; and Jackson, Mississippi.

The ARIC study initially involved 15,792 participants between 45 and 64 years of age, recruited between 1987 and 1989. This was followed by three initial assessments every three years and several subsequent assessments years later, with the most recent being in 2021 and 2022, when 2,105 participants remained in the study.

This analysis used data collected between 2011 and 2022, with the data collected between 2011 and 2013 serving as baseline measures (measures at the start of the study). The 2011-2013 data collection was the fifth data collection wave of the study and it included 6,538 participants.

After excluding participants who had already developed dementia and a number of participants with missing measurements and various other disqualifying characteristics, the analysis was based on 4,818 participants. Their average age at the start of the analytic period was 75 years. Fifty-nine percent of them were women.

The study primarily assessed participants’ arterial stiffness through carotid-femoral pulse wave velocity (cfPWV), which means that they measured how quickly the arterial pressure wave travels between the carotid artery in the neck and the femoral artery in the groin. Study authors hypothesized that individuals in which this wave travels faster (meaning that their arteries are stiffer) would be more likely to develop dementia later in life.

Participants’ cfPWV in this study was measured using an automated waveform analyzer and a segmometer (a tool similar to a tape measure used to measure body segments) after participants were lying on their backs for 5 to 10 minutes. The study also recorded whether participants developed dementia in each data collection wave.

Results showed that, during the examined period (a median follow-up of nine years), 22% of participants developed dementia. As expected, higher cfPWV was associated with greater dementia risk. Similarly, other pulse wave velocity measures such as total pulse wave velocity, structural pulse wave velocity, and load-dependent pulse wave velocity were also associated with greater dementia risk.

Total pulse wave velocity reflects overall arterial stiffness, structural pulse wave velocity reflects the intrinsic stiffness of the arterial wall independent of current pressure, and load-dependent pulse wave velocity reflects the portion of stiffness caused by the artery being stretched by the prevailing blood pressure.

“Arterial stiffness, measured through PWV [pulse wave velocity], is longitudinally associated with increased incidence and a greater risk of all-cause dementia. Associations between arterial stiffness and dementia risk may be driven by both age-related structural remodeling of the arterial wall and increases in arterial stiffness due to elevated blood pressure levels, especially in older populations with a high burden of cardiometabolic risk factors,” study authors concluded.

The study contributes to the scientific knowledge about links between cardio-vascular changes and cognitive functioning. However, it should be noted that the design of the study does not allow any definitive causal inferences to be derived from the results.

The paper, “Arterial stiffness and risk of dementia in late life: The ARIC neurocognitive study,” was authored by Jenna Barbee, James Russell Pike, Jingkai Wei, Hirofumi Tanaka, David S. Knopman, Anna Kucharska-Newton, A. Richey Sharrett, Timothy M. Hughes, Kunihiro Matsushita, Thomas H. Mosley, Michelle L. Meyer, and Priya Palta.

URL: https://www.psypost.org/stiffer-arteries-are-associated-with-higher-risk-of-dementia-in-older-adults/

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High-Dose Vitamin D May Protect Against Cognitive Decline, Study Finds

It turns out that vitamin D is important for more than just strong, healthy bones. A new study…
#NewsBeep #News #Nutrition #AU #Australia #dementiarisk #Health #Sleep #vitamind
https://www.newsbeep.com/au/868890/

High-Dose Vitamin D May Protect Against Cognitive Decline, Study Finds

It turns out that vitamin D is important for more than just strong, healthy bones. A new study…
#NewsBeep #News #Nutrition #AU #Australia #dementiarisk #Health #Sleep #vitamind
https://www.newsbeep.com/au/868890/

High-Dose Vitamin D May Protect Against Cognitive Decline, Study Finds

It turns out that vitamin D is important for more than just strong, healthy bones. A new study…
#NewsBeep #News #Nutrition #dementiarisk #Health #Sleep #UK #UnitedKingdom #VitaminD
https://www.newsbeep.com/uk/750125/

#WalkingBenefits #HealthyLifestyle #PreventiveHealth #DementiaRisk #DiabetesPrevention #Obesity #MovementIsMedicine #wellbeingjourney #wellbeingwarrior #healthyaging #wellnes #wellbeingcoach #wellnessblog #wellnesswins #wellnessmatters #WellBeing #FitnessJourney #HealthAwareness https://mastodon.social/@biohackingpathway/117159437258669377

High-Dose Vitamin D May Protect Against Cognitive Decline, Study Finds

It turns out that vitamin D is important for more than just strong, healthy bones. A new study…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Nutrition #dementiarisk #Health #Sleep #VitaminD
https://www.newsbeep.com/us/825664/

High-Dose Vitamin D May Protect Against Cognitive Decline, Study Finds

It turns out that vitamin D is important for more than just strong, healthy bones. A new study…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Nutrition #dementiarisk #Health #Sleep #VitaminD
https://www.newsbeep.com/us/825664/

https://www.europesays.com/ie/655800/ High-Dose Vitamin D May Protect Against Cognitive Decline, Study Finds #DementiaRisk #Éire #Health #IE #Ireland #Nutrition #Sleep #VitaminD

https://www.europesays.com/ie/655798/ Physical Activity Paradox: Why Some Exercise Raises Dementia Risk While Leisure Workouts Protect the Brain #ActiveCommuting #AirPollution #Alzheimer'sDisease #BrainHealth #DementiaPrevention #DementiaRisk #Éire #Fitness #Health #HouseworkExercise #IE #Ireland #LancetStudy #LeisureExercise #LeisureTime #ManualWork #OccupationalActivity #PhysicalActivityParadox #UKBiobank #WorldHealthOrganization

Spouses of Dementia Patients Face 70% Higher Risk, Study Finds

Photo to aid understanding of the article. Clipart Korea Spouses who live with dementia patients are about 70%…
#EuropeSays #Korea #KR #Seoul #Alzheimer'sDisease #caregivingburden #dementiaprevention #dementiarisk #JAMANetworkOpen #spousaldementia #TaiwanNHRIstudy
https://www.europesays.com/korea/98564/

Study Reveals Higher Dementia Risk in Spouses Beyond Shared Lifestyle Factors

📰 Original title: Your dementia risk is higher if your spouse has it – but it’s more than shared lifestyle

🤖 IA: It's clickbait ⚠️
👥 Users: It's clickbait ⚠️

View full AI summary https://en.killbait.com/study-reveals-higher-dementia-risk-in-spouses-beyond-shared-lifestyle-factors.html?utm_source=mastodon_world&utm_medium=social&utm_campaign=killbait.mastodon_world

#health #dementiarisk #spousehealth

Study Reveals Higher Dementia Risk in Spouses Beyond Shared Lifestyle Factors

📰 Original title: Your dementia risk is higher if your spouse has it – but it’s more than shared lifestyle

🤖 IA: It's clickbait ⚠️
👥 Users: It's clickbait ⚠️

View full AI summary https://en.killbait.com/study-reveals-higher-dementia-risk-in-spouses-beyond-shared-lifestyle-factors.html?utm_source=mastodon_world&utm_medium=social&utm_campaign=killbait.mastodon_world

#health #dementiarisk #spousehealth

Study Reveals Higher Dementia Risk in Spouses Beyond Shared Lifestyle Factors

📰 Original title: Your dementia risk is higher if your spouse has it – but it’s more than shared lifestyle

🤖 IA: It's clickbait ⚠️
👥 Users: It's clickbait ⚠️

View full AI summary https://en.killbait.com/study-reveals-higher-dementia-risk-in-spouses-beyond-shared-lifestyle-factors.html?utm_source=mastodon_world&utm_medium=social&utm_campaign=killbait.mastodon_world

#health #dementiarisk #spousehealth

Chronic Inflammation Raises Dementia Risk 30%, Doctors Warn

Clipart Korea More than seven out of every 10 deaths in Korea are caused by chronic diseases. Cancer,…
#EuropeSays #Korea #KR #Seoul #aging-relateddiseases #chronicinflammation #chronicstress #dementiarisk #inflammaging #prematuredeath #sedentarylifestyle #sleepdeprivation
https://www.europesays.com/korea/74017/

Common prescription drugs linked to dementia risk in over-55s

Commonly prescribed drugs could increase risk of dementia following a scientific study (Image: Getty) Concerns have been raised…
#NewsBeep #News #Healthcare #Alzheimer'sSociety #Alzheimer's #anticholinergicdrugs #Antidepressants #AU #Australia #Dementia #dementiarisk #Health #UniversityofNottinghamstudy
https://www.newsbeep.com/au/739104/

Common prescription drugs linked to dementia risk in over-55s

Commonly prescribed drugs could increase risk of dementia following a scientific study (Image: Getty) Concerns have been raised…
#NewsBeep #News #Healthcare #Alzheimer'sSociety #Alzheimer's #anticholinergicdrugs #Antidepressants #AU #Australia #Dementia #dementiarisk #Health #UniversityofNottinghamstudy
https://www.newsbeep.com/au/739104/

https://www.europesays.com/uk/1029192/ Common prescription drugs linked to dementia risk in over-55s #Alzheimer's #Alzheimer'sSociety #AnticholinergicDrugs #Antidepressants #Dementia #DementiaRisk #Health #UK #UnitedKingdom #UniversityOfNottinghamStudy

https://www.europesays.com/ie/537171/ Common prescription drugs linked to dementia risk in over-55s #Alzheimer's #Alzheimer'sSociety #AnticholinergicDrugs #antidepressants #dementia #DementiaRisk #Éire #Health #HealthCare #Healthcare #IE #Ireland #UniversityOfNottinghamStudy

Common prescription drugs linked to dementia risk in over-55s

Commonly prescribed drugs could increase risk of dementia following a scientific study (Image: Getty) Concerns have been raised…
#NewsBeep #News #Healthcare #Alzheimer's #Alzheimer’sSociety #anticholinergicdrugs #Antidepressants #dementia #dementiarisk #Health #healthcare #UK #UnitedKingdom #UniversityofNottinghamstudy
https://www.newsbeep.com/uk/640750/

DATE: June 10, 2026 at 01:17AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Popular joint supplement glucosamine linked to faster Alzheimer’s progression

URL: https://www.sciencedaily.com/releases/2026/06/260610003044.htm

A major study suggests glucosamine, a popular supplement for joint pain, could be linked to faster progression from mild cognitive impairment to Alzheimer’s disease. Researchers found a 25% higher likelihood of developing dementia among glucosamine users and uncovered biological clues that may explain why.

URL: https://www.sciencedaily.com/releases/2026/06/260610003044.htm

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Private, vetted email list for mental health professionals: https://www.clinicians-exchange.org

Unofficial Psychology Today Xitter to toot feed at Psych Today Unofficial Bot @PTUnofficialBot

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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #Glucosamine #JointSupplement #AlzheimersDisease #DementiaRisk #CognitiveHealth #MildCognitiveImpairment #BrainHealth #Neurodegeneration #SeniorHealth #MedicalResearch

Home Kitchens, Sharper Minds? The Shifting Landscape of Dementia Risk

Cooking at home at least once a week is linked to a lower dementia risk, especially for older adults. Find out how.

#HomeCooking, #DementiaRisk, #BrainHealth, #OlderAdults, #HealthyHabits

https://newsletter.tf/home-cooking-weekly-lowers-dementia-risk/

Cooking at home weekly is linked to a dementia risk reduction of up to 30%, which is a significant change compared to not cooking.

#HomeCooking, #DementiaRisk, #BrainHealth, #OlderAdults, #HealthyHabits
https://newsletter.tf/home-cooking-weekly-lowers-dementia-risk/

> Most adults sit for about 9 to 10 hours each day. Earlier studies have linked long, uninterrupted sitting with cardiovascular disease, type 2 diabetes, and depression. Sitting has also been associated with dementia.

This is the first study to separate mentally passive sitting from mentally active sitting when examining dementia risk. ...

Mentally active sedentary behavior was linked to a lower risk of developing dementia among adults in middle age and older adulthood.

Spending more time in mentally active sedentary behavior was associated with a significant reduction in dementia risk, even when levels of passive sedentary behavior, light physical activity, and moderate to vigorous physical activity were maintained.

https://scitechdaily.com/19-year-study-reveals-the-surprising-truth-about-sitting-and-dementia/

#dementia #dementiastudy
#dementiarisk #sedentarybehavior
#sedentarylifestyle #healthNews
#healthymind

> Most adults sit for about 9 to 10 hours each day. Earlier studies have linked long, uninterrupted sitting with cardiovascular disease, type 2 diabetes, and depression. Sitting has also been associated with dementia.

This is the first study to separate mentally passive sitting from mentally active sitting when examining dementia risk. ...

Mentally active sedentary behavior was linked to a lower risk of developing dementia among adults in middle age and older adulthood.

Spending more time in mentally active sedentary behavior was associated with a significant reduction in dementia risk, even when levels of passive sedentary behavior, light physical activity, and moderate to vigorous physical activity were maintained.

https://scitechdaily.com/19-year-study-reveals-the-surprising-truth-about-sitting-and-dementia/

#dementia #dementiastudy
#dementiarisk #sedentarybehavior
#sedentarylifestyle #healthNews
#healthymind

> Most adults sit for about 9 to 10 hours each day. Earlier studies have linked long, uninterrupted sitting with cardiovascular disease, type 2 diabetes, and depression. Sitting has also been associated with dementia.

This is the first study to separate mentally passive sitting from mentally active sitting when examining dementia risk. ...

Mentally active sedentary behavior was linked to a lower risk of developing dementia among adults in middle age and older adulthood.

Spending more time in mentally active sedentary behavior was associated with a significant reduction in dementia risk, even when levels of passive sedentary behavior, light physical activity, and moderate to vigorous physical activity were maintained.

https://scitechdaily.com/19-year-study-reveals-the-surprising-truth-about-sitting-and-dementia/

#dementia #dementiastudy
#dementiarisk #sedentarybehavior
#sedentarylifestyle #healthNews
#healthymind

Movement: A Rudimentary Yet Pervasive Brain Enhancer

New reports show daily movement can lower dementia risk. Experts explain how more blood flow to the brain helps memory and stress.

#BrainHealth, #DementiaRisk, #DailyMovement, #AlzheimersAssociation, #CognitiveHealth

https://newsletter.tf/daily-movement-lowers-dementia-risk-brain-health/

New studies show that simple daily movement, like walking, can significantly lower the risk of dementia. This is a key finding from the Alzheimer's Association.

#BrainHealth, #DementiaRisk, #DailyMovement, #AlzheimersAssociation, #CognitiveHealth
https://newsletter.tf/daily-movement-lowers-dementia-risk-brain-health/

The Delicate Balance: Sleep, Movement, and the Elusive Shield Against Dementia

New research shows that how much you sleep, exercise, and sit affects your risk of dementia. Learn how to protect your brain.

#DementiaRisk, #BrainHealth, #SleepTips, #ExerciseBenefits, #HealthyLifestyle

https://newsletter.tf/sleep-exercise-sitting-dementia-risk-link/

New findings suggest that getting around 7 hours of sleep is best for brain health. Sleeping too much or too little could increase dementia risk by about 28%.

#DementiaRisk, #BrainHealth, #SleepTips, #ExerciseBenefits, #HealthyLifestyle
https://newsletter.tf/sleep-exercise-sitting-dementia-risk-link/

Ultra-Processed Foods Erodes Visual Attention

Summary: A new international study identified a direct link between the consumption of ultra-processed foods (UPFs) and a measurable de…
#dining #cooking #diet #food #MediterraneanDiet #brainresearch #Cognitivedecline #dementia #Dementiarisk #Mediterranean #MonashUniversity #neurobiology #neuroscience #ultraprocessedfoods #upf #visualattention #visualneuroscience
https://www.diningandcooking.com/2615286/ultra-processed-foods-erodes-visual-attention/

Ultra-Processed Foods Erodes Visual Attention

Summary: A new international study identified a direct link between the consumption of ultra-processe…
#dining #cooking #diet #food #mediterranean #MediterraneanDiet #MediterraneanFood #brainresearch #Cognitivedecline #dementia #Dementiarisk #Mediterranean #MonashUniversity #neurobiology #neuroscience #ultraprocessedfoods #upf #visualattention #visualneuroscience
https://www.diningandcooking.com/2615286/ultra-processed-foods-erodes-visual-attention/

Ultra-Processed Foods Erodes Visual Attention

Summary: A new international study identified a direct link between the consumption of ultra-processed foods (UPFs) and a measurable de…
#dining #cooking #diet #food #MediterraneanDiet #brainresearch #Cognitivedecline #dementia #Dementiarisk #Mediterranean #MonashUniversity #neurobiology #neuroscience #ultraprocessedfoods #upf #visualattention #visualneuroscience
https://www.diningandcooking.com/2615286/ultra-processed-foods-erodes-visual-attention/

Ultra-Processed Foods Erodes Visual Attention

Summary: A new international study identified a direct link between the consumption of ultra-processe…
#dining #cooking #diet #food #mediterranean #MediterraneanDiet #MediterraneanFood #brainresearch #Cognitivedecline #dementia #Dementiarisk #Mediterranean #MonashUniversity #neurobiology #neuroscience #ultraprocessedfoods #upf #visualattention #visualneuroscience
https://www.diningandcooking.com/2615286/ultra-processed-foods-erodes-visual-attention/

Ultra-Processed Foods Erodes Visual Attention

Summary: A new international study identified a direct link between the consumption of ultra-processed foods (UPFs) and a measurable de…
#dining #cooking #diet #food #MediterraneanDiet #brainresearch #Cognitivedecline #dementia #Dementiarisk #Mediterranean #MonashUniversity #neurobiology #neuroscience #ultraprocessedfoods #upf #visualattention #visualneuroscience
https://www.diningandcooking.com/2615286/ultra-processed-foods-erodes-visual-attention/

Ultra-Processed Foods Erodes Visual Attention

Summary: A new international study identified a direct link between the consumption of ultra-processe…
#dining #cooking #diet #food #mediterranean #MediterraneanDiet #MediterraneanFood #brainresearch #Cognitivedecline #dementia #Dementiarisk #Mediterranean #MonashUniversity #neurobiology #neuroscience #ultraprocessedfoods #upf #visualattention #visualneuroscience
https://www.diningandcooking.com/2615286/ultra-processed-foods-erodes-visual-attention/

Ultra-Processed Foods Erodes Visual Attention

Summary: A new international study identified a direct link between the consumption of ultra-processed foods (UPFs) and a measurable de…
#dining #cooking #diet #food #MediterraneanDiet #brainresearch #Cognitivedecline #dementia #Dementiarisk #Mediterranean #MonashUniversity #neurobiology #neuroscience #ultraprocessedfoods #upf #visualattention #visualneuroscience
https://www.diningandcooking.com/2615286/ultra-processed-foods-erodes-visual-attention/