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Psychology News Robot @[email protected] · 2026-05-10 · 20:07 UTC

DATE: May 10, 2026 at 04:00PM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
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TITLE: Brooding identified as a major driver of bedtime procrastination, alongside physical markers of stress

URL: https://www.psypost.org/brooding-identified-as-a-major-driver-of-bedtime-procrastination-alongside-physical-markers-of-stress/

People who stay up later than intended may have a weaker physiological capacity for self-control. A new study published in the Journal of Health Psychology links lower heart rate variability to greater bedtime procrastination.

Many individuals experience the temptation to prolong their use of digital devices, or complete further tasks, despite being aware that they should already be asleep—a behavior known as bedtime procrastination. Scientists have previously connected bedtime procrastination to difficulties with managing behavior and emotions. Individuals who struggle to prioritize long-term wellbeing over short-term enjoyment, or who have trouble regulating negative feelings, are thought to be more prone to pushing their bedtime later.

What has been less well understood is whether this tendency also has a measurable biological marker. A promising candidate is heart rate variability (HRV), defined as the natural variation in the time between heartbeats. Previous research has demonstrated that a higher level of this variability—particularly the component driven by the body’s calming “rest and digest” nervous system (the vagus nerve)—is associated with adaptability to stress and a greater capacity for self-control.

Hence, the researchers in the present study sought to examine whether this physiological marker, alongside self-reported difficulties with managing behavior and emotions, could predict how much someone tends to procrastinate at bedtime.

Lena Mareen Grabo and Silja Bellingrath of the University of Duisburg-Essen in Germany recruited 135 adults aged between 18 and 82 (with an average age of around 29; approximately 65% female). Participants first sat quietly for ten minutes while their heart rate was continuously measured using an accurate chest strap device. From this recording, the researchers calculated each person’s baseline level of heart rate variability.

Participants also filled out questionnaires reporting on how often they procrastinate at bedtime, how well they manage their own behavior and emotions, and how often they engage in specific thinking styles. These thinking styles included a tendency to “brood” (getting stuck in passive, repetitive, negative thought loops) versus “reflect” (purposefully thinking through problems to solve them).

The results pointed to a clear picture in which bedtime procrastination reflects challenges across multiple different aspects of self-control simultaneously. Individuals scoring higher on bedtime procrastination tended to have lower heart rate variability, greater difficulty regulating their behavior, and greater difficulty managing their emotions. Importantly, each of these three factors contributed independently to the prediction of bedtime procrastination.

When analyzing the specific ways people deal with emotions, a nuanced picture emerged. While using “cognitive reappraisal” (a deliberate strategy of reframing stressful situations in a more positive light) initially appeared to reduce bedtime procrastination, it lost its predictive power when other emotional habits were factored in. Ultimately, only “brooding” significantly predicted procrastinating at bedtime in the final model. Conversely, engaging in more reflective, problem-focused thinking did not show any link to delaying sleep.

The study also found that bedtime procrastination was moderately associated with both shorter sleep duration and worse sleep quality, reinforcing just how consequential this habit can be for nightly rest.

Interestingly, the study found no significant connection between a person’s biological heart rate variability and their self-reported measures of behavioral and emotional regulation. This suggests the different components of the self-control system operate somewhat independently, even though they all contribute to the same behavioral outcome.

“Taken together, the findings highlight bedtime procrastination as a problem of diminished self-regulatory capacity reflected in both physiological (lower heart rate variability) and psychological (poorer behavioral and emotion regulation) domains, yet they also suggest that self-regulation is not a unitary construct,” Grabo and Bellingrath concluded.

Some limitations should be noted. For example, the study was conducted at one point in time, and the researchers caution that it cannot reveal strict causality. It is possible that low self-control causes bedtime procrastination, which causes poor sleep, which in turn further depletes self-control the next day in a bidirectional loop.

The study, “Bedtime procrastination as a typical problem of self-regulation? Insights from the examination of heart rate variability, behavioral regulation and emotion regulation,” was authored by Lena Mareen Grabo and Silja Bellingrath.

URL: https://www.psypost.org/brooding-identified-as-a-major-driver-of-bedtime-procrastination-alongside-physical-markers-of-stress/

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Psychology News Robot @[email protected] · 2026-05-11 · 10:17 UTC

DATE: May 11, 2026 at 06:00AM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
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TITLE: Lifelong cognitive enrichment is linked to a 38 percent lower risk of Alzheimer’s disease

URL: https://www.psypost.org/lifelong-cognitive-enrichment-is-linked-to-a-38-percent-lower-risk-of-alzheimers-disease/

A recent study published in the journal Neurology suggests that engaging in mentally stimulating activities and having access to educational resources throughout life can significantly reduce the risk of developing dementia. The findings indicate that building a lifelong habit of cognitive enrichment tends to delay the onset of memory loss and protects brain function. This protective effect appears to persist even when physical signs of brain disease are present in old age.

Alzheimer’s disease is a progressive brain disorder that gradually destroys memory and thinking skills. As the condition advances, individuals lose the ability to carry out the simplest tasks of daily living. The disease is characterized by physical changes in the brain, including the buildup of specific proteins that disrupt communication between brain cells.

Scientists have increasingly focused on ways to prevent or delay the onset of these devastating symptoms. Previous studies indicate that activities like reading, doing puzzles, and having a higher income in old age are associated with better brain health. However, examining only the later years of life paints an incomplete picture.

Andrea Zammit, a neuropsychologist at the Rush Alzheimer’s Disease Center and an assistant professor of psychiatry and behavioral sciences at Rush University in Chicago, noted that previous research often misses early life influences. “Much of the existing research focuses on cognitive engagement in late life, but a love of lifelong learning is often fostered early in life,” Zammit explained.

“Activities in older adulthood capture only a snippet of the lifelong experiences that build risk and resilience in the aging brain,” Zammit told PsyPost. “I think, when possible, it is essential to study how experiences across the entire life course shape long-term outcomes.”

The researchers conducted this study to see how the total sum of a person’s lifelong environment and habits impacts their brain health. They wanted to evaluate if mentally enriching experiences in childhood and middle age contribute to a protective buffer against memory loss later in life. They also wanted to see if this lifelong enrichment protects the brain from physical damage or if it simply helps the brain function better despite the damage.

The scientists analyzed data from 1,939 older adults living in the Chicago area who participated in the Rush Memory and Aging Project. The participants had an average age of almost 80 years at the start of the study and did not have dementia. About 75 percent of the sample was female, and the individuals were generally highly educated.

Participants completed detailed surveys about their access to mentally stimulating resources at different stages of life. The researchers measured early life enrichment by asking about childhood socioeconomic status, which included parental education levels and the number of siblings in the home. They also asked about access to resources like globes or encyclopedias at age twelve and the frequency of being read to at age six.

Midlife and late life enrichment measures included questions about income levels and access to library cards or daily newspapers. The researchers also asked how often people engaged in activities like reading books, visiting museums, or playing games at age 40 and at their current older age. The scientists combined all of these answers to create an overall lifetime cognitive enrichment score for each person.

The researchers tracked the participants for an average of about seven and a half years. During this period, the older adults underwent annual clinical evaluations. They took an extensive battery of 21 tests to measure various aspects of their memory, perceptual speed, and spatial orientation.

During the follow-up period, 551 participants developed Alzheimer’s disease dementia. The researchers found that higher lifetime cognitive enrichment scores were associated with a significantly lower risk of developing the condition. Specifically, a one-point increase in the lifetime enrichment score was linked to a 38 percent lower chance of developing Alzheimer’s disease.

The study provides evidence that an enriched life delays the visible symptoms of cognitive decline. Participants in the highest 10 percent of lifetime enrichment scores developed Alzheimer’s disease at an average age of almost 94 years. In comparison, those in the lowest 10 percent developed the condition at an average age of just over 88 years, representing a difference of more than five years.

The authors also examined mild cognitive impairment, a condition where people experience a slight but noticeable decline in memory and thinking skills that is not severe enough to interfere with daily life. Among the participants, 719 developed this condition. Higher lifetime enrichment was associated with a 36 percent lower risk of developing mild cognitive impairment, delaying its onset by about seven years.

To understand what was happening inside the brain, the scientists looked at a subset of 948 participants who agreed to brain autopsies after they passed away. The researchers examined the brain tissue for physical signs of disease. They looked for things like amyloid plaques and tau tangles, which are the protein buildups typically associated with Alzheimer’s disease.

“The study shows that people who were engaging in more cognitive enrichment had a slower rate of cognitive decline, a lower risk of dementia, and when dementia happened, it was delayed by five years,” Zammit said. “The most surprising aspect was when a subset of participants died and went to autopsy, we did not find substantial associations with pathology, but we found that people who had engaged in more cognitive enrichment had a slower rate of decline even after we accounted for pathology in the brain.”

This means that highly enriched individuals maintained better memory and thinking skills despite having physical brain damage. This concept is known as cognitive resilience. The enriched environment seems to equip the brain to function reasonably well even when disease processes are actively occurring. “So even if a person has some brain changes due to Alzheimer’s disease pathology in the brain, cognitive enrichment may provide a bit of a buffer, meaning the brain can handle more wear and tear before symptoms appear,” Zammit explained.

The scientists looked at the specific life stages to see when enrichment was most helpful. They found that mental stimulation and access to resources during childhood, midlife, and late life each independently contributed to better brain health. However, engaging in mentally stimulating activities during middle age and older age was most strongly linked to a slower rate of memory decline over time.

Zammit hopes the public recognizes the cumulative power of these habits. She suggested the main takeaway is “that cognitive health in older age is shaped by a lifetime of learning and intellectual engagement.”

“While our findings suggest that cognitive enrichment at multiple points in life matters, maintaining lifelong enrichment may be particularly beneficial,” Zammit said. “Our study suggests that brain health develops over decades; however, our results also show that it’s never too early or too late to get mentally active.”

The authors suggest that public investments in mentally stimulating environments could have a major impact on public health. Programs that expand access to libraries, books, and extracurricular activities could help build cognitive resilience across the population. Interventions targeting disadvantaged youth or older adults might foster lifelong learning and reduce the overall societal risk of dementia.

While these findings are promising, there are a few potential limitations to keep in mind. The study relied on participants remembering and reporting their childhood and midlife habits, which can introduce memory biases. People might not perfectly remember how many books were in their house at age twelve or how often their parents read to them.

“A limitation of the study was that enrichment was based using self-reported measures, so people may not accurately remember their past activities,” Zammit noted. “And while the cohort was well characterized, it may not fully represent the broader population.”

The study sample consisted mostly of highly educated, white individuals from a single geographic region. This lack of diversity means the findings might not naturally apply to populations with different cultural backgrounds or socioeconomic realities. Future research needs to test these ideas in more diverse groups of people to see if the benefits of cognitive enrichment are universal.

Looking ahead, Zammit plans to broaden the scope of this research. “I’d like to explore other sources of enrichment that might also help in preserving later-life cognition, such as social engagement,” she said. “I would also like to investigate the biological pathways that may link these sources of enrichment to preserved brain and cognitive health in later life.”

The study, “Associations of Lifetime Cognitive Enrichment With Incident Alzheimer Disease Dementia, Cognitive Aging, and Cognitive Resilience,” was authored by Andrea R. Zammit, Lei Yu, Victoria N. Poole, Alifiya Kapasi, Robert S. Wilson, and David A. Bennett.

URL: https://www.psypost.org/lifelong-cognitive-enrichment-is-linked-to-a-38-percent-lower-risk-of-alzheimers-disease/

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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #LifelongLearning #CognitiveEnrichment #AlzheimersPrevention #BrainHealth #CognitiveResilience #DementiaRiskReduction #MentalStimulation #LifelongEducation #BrainAging #HealthyAging

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Psychology News Robot @[email protected] · 2026-05-11 · 12:40 UTC

DATE: May 10, 2026 at 11:47PM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: This 800-year-old Chinese exercise helps lower blood pressure naturally

URL: https://www.sciencedaily.com/releases/2026/05/260510234724.htm

An ancient Chinese exercise routine may be just as powerful as a daily brisk walk for lowering blood pressure — without equipment, gyms, or intense workouts. In a major clinical trial, adults with stage 1 hypertension who practiced baduanjin, a gentle mind-body exercise combining slow movements, breathing, and meditation, saw meaningful drops in blood pressure within three months that lasted for an entire year.

URL: https://www.sciencedaily.com/releases/2026/05/260510234724.htm

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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #Baduanjin #BloodPressure #Hypertension #MindBodyFitness #AncientExercise #NaturalHealing #HeartHealth #LifestyleMedicine #SleepAndStress #WellnessRoutine

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Psychology News Robot @[email protected] · 2026-05-14 · 05:15 UTC

DATE: May 13, 2026 at 09:07PM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: New psychedelic-like drugs could treat depression without making you trip

URL: https://www.sciencedaily.com/releases/2026/05/260512202325.htm

UC Davis researchers created brand-new psychedelic-like compounds by shining UV light on amino acid-based molecules. These compounds activated key serotonin receptors tied to brain plasticity and mental health benefits, but surprisingly did not cause hallucination-like behavior in animal tests. Scientists say the discovery could lead to future treatments for depression, PTSD, and addiction without the intense psychedelic experience.

URL: https://www.sciencedaily.com/releases/2026/05/260512202325.htm

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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #psychedeliclike #depressiontreatment #serotoninreceptors #brainplasticity #mentalhealthresearch #UCdavishalogen #noveltherapies #PTSDtreatment #addictionrecovery #depressionwithouttrip

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Healthcare Tech Robot @[email protected] · 2026-01-08 · 00:34 UTC

DATE: January 07, 2026 at 07:30PM
SOURCE: BioWorld MedTech

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