#circadianrhythms — Public Fediverse posts
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DATE: July 29, 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. **
-------------------------------------------------TITLE: Night owls may face a higher risk of acquired premature ejaculation
URL: https://www.psypost.org/night-owls-may-face-a-higher-risk-of-acquired-premature-ejaculation/
Men who naturally prefer staying up late might be more susceptible to developing premature ejaculation later in life, and they often experience more severe symptoms than early risers. A recent study found that this association is partly linked to lifestyle habits, highlighting how sleep preferences and daily behaviors influence sexual function. The research was published in The Journal of Sexual Medicine.
Premature ejaculation is one of the most common sexual health conditions affecting men worldwide. Doctors categorize it into two main subtypes based on when it begins. Lifelong premature ejaculation is present from a person’s first sexual encounters. The condition can also develop later in life after a period of normal sexual function, a state known as acquired premature ejaculation.
Men experiencing the acquired form often face a sudden onset of symptoms. The condition typically reduces the time to ejaculation to less than three minutes. This rapid shift causes considerable psychological distress and can rapidly impair a person’s overall quality of life.
Medical professionals have identified several risk factors for this acquired sexual dysfunction. Chronic pelvic pain, anxiety, and thyroid issues are all known to play a role. However, the exact biological and behavioral roots of the condition remain somewhat mysterious.
In clinical settings, doctors noticed a recurring pattern among patients dealing with acquired premature ejaculation. Many of these men seemed to favor late bedtimes and experienced erratic sleep schedules. They also struggled with emotional volatility and had a hard time maintaining healthy daily routines.
This observation led doctors to wonder if a person’s innate biological clock might influence their ejaculatory control. Chronotype refers to an individual’s natural internal circadian rhythm. This biological preference dictates an individual’s ideal times for sleeping and waking over a 24-hour cycle.
People are generally grouped into morning types, intermediate types, and evening types based on these natural rhythms. Those with an evening chronotype, colloquially called night owls, frequently experience poorer sleep quality. They are also more prone to anxiety and depressive symptoms, which are already known risk factors for sexual dysfunction.
Lead author Zhi Cao and a research team from the First Affiliated Hospital of Anhui Medical University and Peking University First Hospital in China designed an observational study to explore this potential connection. They wanted to see if an evening chronotype correlated with the presence and severity of acquired premature ejaculation.
The researchers also sought to understand if certain behavioral routines played a role in bridging this gap. Specifically, they looked at health promoting lifestyles, which encompass proactive habits like nutritious eating, regular physical exercise, and active stress management. Prior research has connected these positive habits to better erectile function and a lower risk of overall sexual dysfunction.
Because night owls often exhibit lower rates of physical exercise and more irregular sleep durations than morning types, the researchers formulated a testable hypothesis. They speculated that lifestyle habits might mediate the relationship between chronotype and ejaculatory control.
The study involved 1,011 adult men. This sample included 516 patients previously diagnosed with acquired premature ejaculation and 495 healthy control subjects. The control participants were matched to the patient group based on age, body mass index, and substance use history to ensure an even comparison.
Participants completed a series of paper questionnaires during visits to a medical clinic. These surveys evaluated their ejaculatory control, their baseline erectile function, and their natural position on the morning to evening chronotype spectrum. The surveys also assessed the men’s regular engagement in health promoting lifestyle habits.
Men in the diagnosed group filled out an additional survey to measure their illness perception. This concept refers to how threatening, persistent, and uncontrollable a patient believes their own medical condition to be. High illness perception means a patient feels deeply burdened or hopeless about their symptoms, while low illness perception suggests they view the condition as manageable.
The researchers found that men with acquired premature ejaculation scored globally lower on morningness and lifestyle habits than the healthy control subjects. Having an evening chronotype was statistically linked to the presence of the condition. Among the men dealing with the dysfunction, a stronger preference for staying up late correlated with worse ejaculatory control.
Circadian rhythm disruptions, which are common in night owls, might explain this link on a biological level. These internal cycles regulate numerous physiological processes, including the production of key neurotransmitters like serotonin and dopamine. Animal studies have shown that serotonin levels fluctuate in a circadian pattern, and central nervous system serotonin is closely linked to ejaculatory latency.
Disruptions in these monoamine systems could undermine the body’s ability to delay ejaculation. Statistical analyses in the current study revealed a secondary behavioral pathway at work. Daily habits partly explained the link between sleep preferences and sexual function in the patient group.
Individuals with an evening chronotype tended to engage in fewer health promoting behaviors. These diminished health habits in turn correlated with worse symptoms. The data indicated that lifestyle habits accounted for a substantial portion of the association between chronotype and symptom severity.
A patient’s individual perception of their condition altered these relationships. For men who felt a high degree of threat and lack of control regarding their sexual health, the positive association between being a morning person and having better lifestyle habits weakened. A similar attenuation appeared in the link between healthy habits and symptom severity.
When men feel overwhelmed by their condition, the potential benefits of regular exercise, nutrition, and stress management seem to diminish. High anxiety and constant symptom vigilance consume cognitive and emotional resources. This heavy psychological burden likely reduces the energy available to maintain healthy daily routines.
Because the study relied on taking a snapshot of data at a single point in time, the researchers cannot state that being a night owl directly causes acquired premature ejaculation. The relationships observed might operate in multiple directions. Repeated failures of ejaculatory control frequently trigger severe sexual performance anxiety.
This anxiety can activate the sympathetic nervous system, leading to difficulties initiating sleep. Progressive delays in bedtime could then reinforce an evening chronotype over time. Validating this cycle definitively requires observing patients over multiple years.
The participant pool was drawn from a single hospital in China, meaning the demographic sample was limited. Testing these variables across different cultural contexts and in broader community settings would help verify the patterns. The researchers also relied on self-reported questionnaires, which are vulnerable to recall bias and social desirability bias.
The researchers did not formally assess clinical anxiety or depressive symptoms beyond basic screening. Since these mental health factors heavily influence sleep, lifestyle, and sexual function, future studies will need to incorporate standardized psychological evaluations to get a more accurate picture of the dynamics at play.
Future research will need to track men over longer periods to see how sleep preferences and health routines evolve alongside sexual function. Clinical trials could eventually test whether targeted behaviors, like improving dietary habits or adjusting sleep schedules, actually improve ejaculatory control. In the meantime, medical professionals might benefit from asking patients about their sleep timing, daily lifestyle, and emotional reactions to their symptoms during routine consultations.
The study, “Chronotype is associated with acquired premature ejaculation: evidence from moderated mediation analysis,” was authored by Zhi Cao, Tianle Zhu, Yunlong Ge, Peng Yang, Yukuai Ma, Pan Gao, Hui Jiang, and Xiansheng Zhang.
URL: https://www.psypost.org/night-owls-may-face-a-higher-risk-of-acquired-premature-ejaculation/
-------------------------------------------------
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 #AcquiredPrematureEjaculation #NightOwls #Chronotype #SleepHealth #SexualFunction #EjaculatoryLatency #HealthPromotingLifestyle #CircadianRhythms #MaleHealth #SleepAndSex
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DATE: July 29, 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. **
-------------------------------------------------TITLE: Night owls may face a higher risk of acquired premature ejaculation
URL: https://www.psypost.org/night-owls-may-face-a-higher-risk-of-acquired-premature-ejaculation/
Men who naturally prefer staying up late might be more susceptible to developing premature ejaculation later in life, and they often experience more severe symptoms than early risers. A recent study found that this association is partly linked to lifestyle habits, highlighting how sleep preferences and daily behaviors influence sexual function. The research was published in The Journal of Sexual Medicine.
Premature ejaculation is one of the most common sexual health conditions affecting men worldwide. Doctors categorize it into two main subtypes based on when it begins. Lifelong premature ejaculation is present from a person’s first sexual encounters. The condition can also develop later in life after a period of normal sexual function, a state known as acquired premature ejaculation.
Men experiencing the acquired form often face a sudden onset of symptoms. The condition typically reduces the time to ejaculation to less than three minutes. This rapid shift causes considerable psychological distress and can rapidly impair a person’s overall quality of life.
Medical professionals have identified several risk factors for this acquired sexual dysfunction. Chronic pelvic pain, anxiety, and thyroid issues are all known to play a role. However, the exact biological and behavioral roots of the condition remain somewhat mysterious.
In clinical settings, doctors noticed a recurring pattern among patients dealing with acquired premature ejaculation. Many of these men seemed to favor late bedtimes and experienced erratic sleep schedules. They also struggled with emotional volatility and had a hard time maintaining healthy daily routines.
This observation led doctors to wonder if a person’s innate biological clock might influence their ejaculatory control. Chronotype refers to an individual’s natural internal circadian rhythm. This biological preference dictates an individual’s ideal times for sleeping and waking over a 24-hour cycle.
People are generally grouped into morning types, intermediate types, and evening types based on these natural rhythms. Those with an evening chronotype, colloquially called night owls, frequently experience poorer sleep quality. They are also more prone to anxiety and depressive symptoms, which are already known risk factors for sexual dysfunction.
Lead author Zhi Cao and a research team from the First Affiliated Hospital of Anhui Medical University and Peking University First Hospital in China designed an observational study to explore this potential connection. They wanted to see if an evening chronotype correlated with the presence and severity of acquired premature ejaculation.
The researchers also sought to understand if certain behavioral routines played a role in bridging this gap. Specifically, they looked at health promoting lifestyles, which encompass proactive habits like nutritious eating, regular physical exercise, and active stress management. Prior research has connected these positive habits to better erectile function and a lower risk of overall sexual dysfunction.
Because night owls often exhibit lower rates of physical exercise and more irregular sleep durations than morning types, the researchers formulated a testable hypothesis. They speculated that lifestyle habits might mediate the relationship between chronotype and ejaculatory control.
The study involved 1,011 adult men. This sample included 516 patients previously diagnosed with acquired premature ejaculation and 495 healthy control subjects. The control participants were matched to the patient group based on age, body mass index, and substance use history to ensure an even comparison.
Participants completed a series of paper questionnaires during visits to a medical clinic. These surveys evaluated their ejaculatory control, their baseline erectile function, and their natural position on the morning to evening chronotype spectrum. The surveys also assessed the men’s regular engagement in health promoting lifestyle habits.
Men in the diagnosed group filled out an additional survey to measure their illness perception. This concept refers to how threatening, persistent, and uncontrollable a patient believes their own medical condition to be. High illness perception means a patient feels deeply burdened or hopeless about their symptoms, while low illness perception suggests they view the condition as manageable.
The researchers found that men with acquired premature ejaculation scored globally lower on morningness and lifestyle habits than the healthy control subjects. Having an evening chronotype was statistically linked to the presence of the condition. Among the men dealing with the dysfunction, a stronger preference for staying up late correlated with worse ejaculatory control.
Circadian rhythm disruptions, which are common in night owls, might explain this link on a biological level. These internal cycles regulate numerous physiological processes, including the production of key neurotransmitters like serotonin and dopamine. Animal studies have shown that serotonin levels fluctuate in a circadian pattern, and central nervous system serotonin is closely linked to ejaculatory latency.
Disruptions in these monoamine systems could undermine the body’s ability to delay ejaculation. Statistical analyses in the current study revealed a secondary behavioral pathway at work. Daily habits partly explained the link between sleep preferences and sexual function in the patient group.
Individuals with an evening chronotype tended to engage in fewer health promoting behaviors. These diminished health habits in turn correlated with worse symptoms. The data indicated that lifestyle habits accounted for a substantial portion of the association between chronotype and symptom severity.
A patient’s individual perception of their condition altered these relationships. For men who felt a high degree of threat and lack of control regarding their sexual health, the positive association between being a morning person and having better lifestyle habits weakened. A similar attenuation appeared in the link between healthy habits and symptom severity.
When men feel overwhelmed by their condition, the potential benefits of regular exercise, nutrition, and stress management seem to diminish. High anxiety and constant symptom vigilance consume cognitive and emotional resources. This heavy psychological burden likely reduces the energy available to maintain healthy daily routines.
Because the study relied on taking a snapshot of data at a single point in time, the researchers cannot state that being a night owl directly causes acquired premature ejaculation. The relationships observed might operate in multiple directions. Repeated failures of ejaculatory control frequently trigger severe sexual performance anxiety.
This anxiety can activate the sympathetic nervous system, leading to difficulties initiating sleep. Progressive delays in bedtime could then reinforce an evening chronotype over time. Validating this cycle definitively requires observing patients over multiple years.
The participant pool was drawn from a single hospital in China, meaning the demographic sample was limited. Testing these variables across different cultural contexts and in broader community settings would help verify the patterns. The researchers also relied on self-reported questionnaires, which are vulnerable to recall bias and social desirability bias.
The researchers did not formally assess clinical anxiety or depressive symptoms beyond basic screening. Since these mental health factors heavily influence sleep, lifestyle, and sexual function, future studies will need to incorporate standardized psychological evaluations to get a more accurate picture of the dynamics at play.
Future research will need to track men over longer periods to see how sleep preferences and health routines evolve alongside sexual function. Clinical trials could eventually test whether targeted behaviors, like improving dietary habits or adjusting sleep schedules, actually improve ejaculatory control. In the meantime, medical professionals might benefit from asking patients about their sleep timing, daily lifestyle, and emotional reactions to their symptoms during routine consultations.
The study, “Chronotype is associated with acquired premature ejaculation: evidence from moderated mediation analysis,” was authored by Zhi Cao, Tianle Zhu, Yunlong Ge, Peng Yang, Yukuai Ma, Pan Gao, Hui Jiang, and Xiansheng Zhang.
URL: https://www.psypost.org/night-owls-may-face-a-higher-risk-of-acquired-premature-ejaculation/
-------------------------------------------------
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 #AcquiredPrematureEjaculation #NightOwls #Chronotype #SleepHealth #SexualFunction #EjaculatoryLatency #HealthPromotingLifestyle #CircadianRhythms #MaleHealth #SleepAndSex
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DATE: July 27, 2026 at 10:00AM
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: New expert consensus highlights the role of circadian rhythms in treating bipolar disorder
A new consensus report published in the journal Bipolar Disorders details the specific knowledge about the body’s internal clock that mental health professionals need to provide the best care for patients with bipolar disorder. The findings provide a framework for using light, dark, and daily routines to help stabilize mood and improve sleep. This information is intended to help update clinical training and treatment guidelines around the world.
Bipolar disorder is a mental health condition characterized by extreme shifts in mood, energy, and activity levels. People with this condition experience emotional highs known as mania or hypomania, along with periods of severe depression. The exact causes of these mood episodes are complex and often vary from person to person. However, growing evidence suggests that disruptions in circadian rhythms play a significant role in the illness.
Circadian rhythms are the physical, mental, and behavioral changes that follow a 24-hour cycle. These daily rhythms are driven by an internal biological clock located in a brain region called the suprachiasmatic nucleus. This master clock responds to environmental cues like light and darkness. These environmental signals tell the human body when it is time to be awake and when it is time to sleep.
The study of how biological rhythms affect human health is known as chronobiology. Based on this science, researchers have developed chronotherapies. These are treatments that seek to adjust the body’s internal clock to improve mental and physical health. Typical chronotherapies include timing a person’s exposure to bright light or creating highly structured daily routines.
Basic science and observational studies suggest that circadian dysfunction is deeply intertwined with bipolar disorder. Treatment strategies based on this science are gaining recognition as helpful tools for managing the condition. Despite the growing evidence, many medical training programs overlook this topic. Experts note that the average medical student receives very little education regarding the science of sleep or biological rhythms.
Many clinical practice guidelines also omit recommendations regarding chronotherapy. A previous review of 25 treatment guidelines for bipolar disorder found that less than half mentioned circadian disturbances at all. The authors of the current study wanted to bridge this educational gap.
“The science of chronobiology in mood disorders is almost 50 years old, during which we have learned a great deal! But despite this, most clinical guidelines for bipolar disorder and most clinical training programs make no or very little mention about the role of circadian rhythms in the management of the disorder,” said Jacob Crouse, a senior research fellow at the Brain and Mind Centre at the University of Sydney.
Crouse and his team set out to identify exactly what mental health clinicians should know about chronobiology to optimize patient care. “We wanted to change this by bringing experts together to agree on the ‘must-know’ information for clinicians, which could then help influence guidelines and training programs, as well as key research priorities where we still have major knowledge gaps,” Crouse explained.
To determine this essential knowledge, the scientists organized a Delphi study. This research method relies on a panel of experts who answer questionnaires across multiple rounds. After each round, the experts see an anonymous summary of what the group thinks, and they can adjust their own answers. The goal is to see if the group can reach a consensus on a specific and highly technical topic.
The researchers recruited 30 experts from 15 different countries across North America, South America, Europe, Asia, and Oceania. The group had an average age of 55.3 years and was 40 percent female. Most of the participants were practicing psychiatrists. The panel brought a wealth of knowledge to the project, with an average of 26 years of clinical experience and 22 years of research experience.
The scientists began by gathering statements about bipolar disorder and chronotherapy from existing scientific literature. They extracted an initial pool of 960 statements, which they refined down to 758 statements for the first round of rating. The experts then used a five-point scale to rate how important it was for a clinician to know each piece of information. The rating options ranged from essential to unimportant, with a neutral option for conditional situations.
The researchers defined a consensus as any statement that at least 80 percent of the experts rated as essential or important. Over the course of three rounds of voting, the experts reached a consensus on 342 different statements. These approved statements were divided into four major themes. The themes covered basic circadian science, circadian health, the chronobiology of bipolar disorder, and specific chronotherapies.
Within the basic science theme, the experts agreed that clinicians must understand how the human biological clock works. For example, all experts agreed that light is the strongest environmental cue for the human body. They also agreed that melatonin is a chemical signal of darkness, rather than just a simple sleep hormone. Light exposure inhibits the brain’s ability to synthesize this specific hormone, which naturally promotes wakefulness during the day.
Under the theme of circadian health and disruption, the experts identified the causes and consequences of a misaligned body clock. They agreed that shifting sleep and wake times is associated with greater mood instability. They also noted that increasing morning light exposure and reducing evening light exposure tends to help shift the biological clock to an earlier time. This simple behavioral adjustment can lessen the physical stress of irregular schedules.
The third theme focused on the specific links between circadian rhythms and bipolar disorder. The experts reached a consensus that a malfunctioning body clock may underlie the mood cycles seen in this condition. They agreed that seasonal changes, such as shifting daylight hours, are a common trigger for mood episodes. They also emphasized that poor sleep can worsen the symptoms of bipolar disorder, and that these symptoms can similarly interfere with a person’s ability to rest.
The final and largest theme covered six major chronotherapies. The experts agreed that mental health professionals need to know about the proper protocols, risks, and expected outcomes for each treatment. For instance, bright light therapy involves sitting near a specialized device that emits a specific intensity of light. The experts noted that this therapy provides evidence of acting as a strong antidepressant for the depressive phase of bipolar disorder.
Another approved treatment strategy is dark therapy, which often involves wearing special orange-tinted glasses. These blue-blocking glasses stop the specific wavelengths of artificial light that suppress natural melatonin production. The experts agreed that wearing these glasses in the evening can improve sleep and may help rapidly reduce symptoms of mania. They also agreed that patients should try to darken their bedrooms using blackout curtains or eye masks.
The experts also reviewed statements regarding the use of supplemental melatonin. They determined that there is currently insufficient clinical evidence to fully endorse or reject over-the-counter melatonin supplements for treating the acute phases of bipolar depression. However, they did agree that taking high-quality melatonin an hour before bedtime sends a strong signal to the circadian clock.
The experts also endorsed Interpersonal and Social Rhythm Therapy as an essential concept for clinicians to learn. This psychological treatment teaches people to track and manage the regularity of their daily routines. Patients monitor when they get out of bed, eat dinner, and go to sleep. The consensus statements noted that this therapy helps patients identify the specific environmental events that disrupt their daily rhythms.
Other chronotherapies discussed by the panel included wake therapy and sleep hygiene adjustments. Wake therapy involves controlled sleep deprivation under clinical supervision, which tends to work rapidly but requires extreme caution to avoid triggering mania. The panel also agreed on the utility of cognitive behavioral therapy for insomnia. This therapeutic approach addresses the specific thoughts and beliefs that interfere with healthy sleep.
The authors hope these details will eventually reach the wider public. “Most people will have a colleague, friend, or family member with bipolar disorder,” Crouse told PsyPost. “We want people to know that managing sleep and circadian rhythms is a critical part of managing bipolar disorder, and that not all clinicians know this.”
By spreading this knowledge, the researchers aim to empower patients to participate actively in their treatment. “We want people to be able to advocate for themselves to get the best care possible and to ask their doctor, ‘Do you know about this? What could we do about this?'” Crouse said.
A common misinterpretation among healthcare professionals involves the exact relationship between the biological clock and mental health. “Many people working in mental health assume that sleep and circadian rhythm disturbances are just secondary consequences of bipolar disorder,” Crouse explained. He suggests that this assumption has probably contributed to the topic being excluded from some guidelines and training programs.
“But sleep and circadian rhythm disturbances are strong triggers for mood episodes, and there is the hypothesis that these disturbances are actually a primary, causal part of the pathophysiology of bipolar disorder (at least in some people),” Crouse added.
One potential limitation of the study is the geographical makeup of the expert panel. The researchers did not recruit any participants from the African continent or from highly populated countries like India and China. They also lacked input from experts living in regions with extreme seasonal light changes, such as countries near the Arctic Circle. This lack of global representation suggests that some consensus statements might not account for unique cultural or environmental factors.
The makeup of the expert panel was also heavily skewed toward psychiatrists. Input from other healthcare professionals, such as general practitioners, psychologists, and mental health nurses, was limited. Bringing more diverse professional perspectives into the rating process might have shifted the priorities of the final consensus.
The researchers also noted the specific way they included patient perspectives. “Two young people with lived experience of bipolar disorder helped run the study, one of whom wrote about their journey with bipolar disorder and their perspective about how things might have been different for them had they encountered a clinician earlier who was aware of the chronobiological aspects of bipolar disorder,” Crouse said.
These individuals were also professional researchers, suggesting that incorporating a broader group of patients from the general community might yield additional insights into the practical limitations of these therapies. Still, Crouse emphasized the power of the included narrative. “This story is one of many, and helps communicate the urgency and reality of what we are trying to do,” he noted.
“A key mission is to get chronobiology much more onto the radar of people working in the field not only for the mental health aspects but also for prevention and management of cardiometabolic health (which is a huge problem for people with bipolar disorder). We are keen that the field makes use of our consensus findings in their own training materials, and we hope to create accessible online modules that can enhance the skills of clinicians around the world,” Crouse added.
The study, “Essential Information About Chronobiology and Chronotherapy for the Optimal Care of People With Bipolar Disorders: An Expert Consensus,” was authored by Jacob J. Crouse, Victoria Loblay, Anthony Jorm, Timothy R. Wong, Zsofi de Haan, Carla Gorban, Mirim Shin, Emiliana Tonini, Chris Aiken, Lauren B. Alloy, Kürşat Altinbaş, Serge Beaulieu, Joanne S. Carpenter, Bruno Etain, Yuichi Esaki, Jess G. Fiedorowicz, Corrado Garbazza, Pierre A. Geoffroy, Bartholomeus C. M. Haarman, Tone E. G. Henriksen, Maria Paz Hidalgo, Maree L. Inder, Raymond W. Lam, Helle Ø. Madsen, Colleen A. McClung, Gunnar Morken, Laura Palagini, James Phelps, Richard J. Porter, Aswin Ratheesh, Rixt F. Riemersma-Van der Lek, Janusz K. Rybakowski, Erika F. H. Saunders, Peter F. J. Schulte, Daniel J. Smith, Holly A. Swartz, Bryan K. Tolliver, Anna Wirz-Justice, Ian B. Hickie, and John F. Gottlieb.
-------------------------------------------------
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 #CircadianRhythms #Chronotherapy #BipolarDisorder #SleepScience #LightTherapy #DarkTherapy #Melatonin #InterpersonalRhythmTherapy #MoodStability #Chronobiology
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DATE: July 27, 2026 at 10:00AM
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: New expert consensus highlights the role of circadian rhythms in treating bipolar disorder
A new consensus report published in the journal Bipolar Disorders details the specific knowledge about the body’s internal clock that mental health professionals need to provide the best care for patients with bipolar disorder. The findings provide a framework for using light, dark, and daily routines to help stabilize mood and improve sleep. This information is intended to help update clinical training and treatment guidelines around the world.
Bipolar disorder is a mental health condition characterized by extreme shifts in mood, energy, and activity levels. People with this condition experience emotional highs known as mania or hypomania, along with periods of severe depression. The exact causes of these mood episodes are complex and often vary from person to person. However, growing evidence suggests that disruptions in circadian rhythms play a significant role in the illness.
Circadian rhythms are the physical, mental, and behavioral changes that follow a 24-hour cycle. These daily rhythms are driven by an internal biological clock located in a brain region called the suprachiasmatic nucleus. This master clock responds to environmental cues like light and darkness. These environmental signals tell the human body when it is time to be awake and when it is time to sleep.
The study of how biological rhythms affect human health is known as chronobiology. Based on this science, researchers have developed chronotherapies. These are treatments that seek to adjust the body’s internal clock to improve mental and physical health. Typical chronotherapies include timing a person’s exposure to bright light or creating highly structured daily routines.
Basic science and observational studies suggest that circadian dysfunction is deeply intertwined with bipolar disorder. Treatment strategies based on this science are gaining recognition as helpful tools for managing the condition. Despite the growing evidence, many medical training programs overlook this topic. Experts note that the average medical student receives very little education regarding the science of sleep or biological rhythms.
Many clinical practice guidelines also omit recommendations regarding chronotherapy. A previous review of 25 treatment guidelines for bipolar disorder found that less than half mentioned circadian disturbances at all. The authors of the current study wanted to bridge this educational gap.
“The science of chronobiology in mood disorders is almost 50 years old, during which we have learned a great deal! But despite this, most clinical guidelines for bipolar disorder and most clinical training programs make no or very little mention about the role of circadian rhythms in the management of the disorder,” said Jacob Crouse, a senior research fellow at the Brain and Mind Centre at the University of Sydney.
Crouse and his team set out to identify exactly what mental health clinicians should know about chronobiology to optimize patient care. “We wanted to change this by bringing experts together to agree on the ‘must-know’ information for clinicians, which could then help influence guidelines and training programs, as well as key research priorities where we still have major knowledge gaps,” Crouse explained.
To determine this essential knowledge, the scientists organized a Delphi study. This research method relies on a panel of experts who answer questionnaires across multiple rounds. After each round, the experts see an anonymous summary of what the group thinks, and they can adjust their own answers. The goal is to see if the group can reach a consensus on a specific and highly technical topic.
The researchers recruited 30 experts from 15 different countries across North America, South America, Europe, Asia, and Oceania. The group had an average age of 55.3 years and was 40 percent female. Most of the participants were practicing psychiatrists. The panel brought a wealth of knowledge to the project, with an average of 26 years of clinical experience and 22 years of research experience.
The scientists began by gathering statements about bipolar disorder and chronotherapy from existing scientific literature. They extracted an initial pool of 960 statements, which they refined down to 758 statements for the first round of rating. The experts then used a five-point scale to rate how important it was for a clinician to know each piece of information. The rating options ranged from essential to unimportant, with a neutral option for conditional situations.
The researchers defined a consensus as any statement that at least 80 percent of the experts rated as essential or important. Over the course of three rounds of voting, the experts reached a consensus on 342 different statements. These approved statements were divided into four major themes. The themes covered basic circadian science, circadian health, the chronobiology of bipolar disorder, and specific chronotherapies.
Within the basic science theme, the experts agreed that clinicians must understand how the human biological clock works. For example, all experts agreed that light is the strongest environmental cue for the human body. They also agreed that melatonin is a chemical signal of darkness, rather than just a simple sleep hormone. Light exposure inhibits the brain’s ability to synthesize this specific hormone, which naturally promotes wakefulness during the day.
Under the theme of circadian health and disruption, the experts identified the causes and consequences of a misaligned body clock. They agreed that shifting sleep and wake times is associated with greater mood instability. They also noted that increasing morning light exposure and reducing evening light exposure tends to help shift the biological clock to an earlier time. This simple behavioral adjustment can lessen the physical stress of irregular schedules.
The third theme focused on the specific links between circadian rhythms and bipolar disorder. The experts reached a consensus that a malfunctioning body clock may underlie the mood cycles seen in this condition. They agreed that seasonal changes, such as shifting daylight hours, are a common trigger for mood episodes. They also emphasized that poor sleep can worsen the symptoms of bipolar disorder, and that these symptoms can similarly interfere with a person’s ability to rest.
The final and largest theme covered six major chronotherapies. The experts agreed that mental health professionals need to know about the proper protocols, risks, and expected outcomes for each treatment. For instance, bright light therapy involves sitting near a specialized device that emits a specific intensity of light. The experts noted that this therapy provides evidence of acting as a strong antidepressant for the depressive phase of bipolar disorder.
Another approved treatment strategy is dark therapy, which often involves wearing special orange-tinted glasses. These blue-blocking glasses stop the specific wavelengths of artificial light that suppress natural melatonin production. The experts agreed that wearing these glasses in the evening can improve sleep and may help rapidly reduce symptoms of mania. They also agreed that patients should try to darken their bedrooms using blackout curtains or eye masks.
The experts also reviewed statements regarding the use of supplemental melatonin. They determined that there is currently insufficient clinical evidence to fully endorse or reject over-the-counter melatonin supplements for treating the acute phases of bipolar depression. However, they did agree that taking high-quality melatonin an hour before bedtime sends a strong signal to the circadian clock.
The experts also endorsed Interpersonal and Social Rhythm Therapy as an essential concept for clinicians to learn. This psychological treatment teaches people to track and manage the regularity of their daily routines. Patients monitor when they get out of bed, eat dinner, and go to sleep. The consensus statements noted that this therapy helps patients identify the specific environmental events that disrupt their daily rhythms.
Other chronotherapies discussed by the panel included wake therapy and sleep hygiene adjustments. Wake therapy involves controlled sleep deprivation under clinical supervision, which tends to work rapidly but requires extreme caution to avoid triggering mania. The panel also agreed on the utility of cognitive behavioral therapy for insomnia. This therapeutic approach addresses the specific thoughts and beliefs that interfere with healthy sleep.
The authors hope these details will eventually reach the wider public. “Most people will have a colleague, friend, or family member with bipolar disorder,” Crouse told PsyPost. “We want people to know that managing sleep and circadian rhythms is a critical part of managing bipolar disorder, and that not all clinicians know this.”
By spreading this knowledge, the researchers aim to empower patients to participate actively in their treatment. “We want people to be able to advocate for themselves to get the best care possible and to ask their doctor, ‘Do you know about this? What could we do about this?'” Crouse said.
A common misinterpretation among healthcare professionals involves the exact relationship between the biological clock and mental health. “Many people working in mental health assume that sleep and circadian rhythm disturbances are just secondary consequences of bipolar disorder,” Crouse explained. He suggests that this assumption has probably contributed to the topic being excluded from some guidelines and training programs.
“But sleep and circadian rhythm disturbances are strong triggers for mood episodes, and there is the hypothesis that these disturbances are actually a primary, causal part of the pathophysiology of bipolar disorder (at least in some people),” Crouse added.
One potential limitation of the study is the geographical makeup of the expert panel. The researchers did not recruit any participants from the African continent or from highly populated countries like India and China. They also lacked input from experts living in regions with extreme seasonal light changes, such as countries near the Arctic Circle. This lack of global representation suggests that some consensus statements might not account for unique cultural or environmental factors.
The makeup of the expert panel was also heavily skewed toward psychiatrists. Input from other healthcare professionals, such as general practitioners, psychologists, and mental health nurses, was limited. Bringing more diverse professional perspectives into the rating process might have shifted the priorities of the final consensus.
The researchers also noted the specific way they included patient perspectives. “Two young people with lived experience of bipolar disorder helped run the study, one of whom wrote about their journey with bipolar disorder and their perspective about how things might have been different for them had they encountered a clinician earlier who was aware of the chronobiological aspects of bipolar disorder,” Crouse said.
These individuals were also professional researchers, suggesting that incorporating a broader group of patients from the general community might yield additional insights into the practical limitations of these therapies. Still, Crouse emphasized the power of the included narrative. “This story is one of many, and helps communicate the urgency and reality of what we are trying to do,” he noted.
“A key mission is to get chronobiology much more onto the radar of people working in the field not only for the mental health aspects but also for prevention and management of cardiometabolic health (which is a huge problem for people with bipolar disorder). We are keen that the field makes use of our consensus findings in their own training materials, and we hope to create accessible online modules that can enhance the skills of clinicians around the world,” Crouse added.
The study, “Essential Information About Chronobiology and Chronotherapy for the Optimal Care of People With Bipolar Disorders: An Expert Consensus,” was authored by Jacob J. Crouse, Victoria Loblay, Anthony Jorm, Timothy R. Wong, Zsofi de Haan, Carla Gorban, Mirim Shin, Emiliana Tonini, Chris Aiken, Lauren B. Alloy, Kürşat Altinbaş, Serge Beaulieu, Joanne S. Carpenter, Bruno Etain, Yuichi Esaki, Jess G. Fiedorowicz, Corrado Garbazza, Pierre A. Geoffroy, Bartholomeus C. M. Haarman, Tone E. G. Henriksen, Maria Paz Hidalgo, Maree L. Inder, Raymond W. Lam, Helle Ø. Madsen, Colleen A. McClung, Gunnar Morken, Laura Palagini, James Phelps, Richard J. Porter, Aswin Ratheesh, Rixt F. Riemersma-Van der Lek, Janusz K. Rybakowski, Erika F. H. Saunders, Peter F. J. Schulte, Daniel J. Smith, Holly A. Swartz, Bryan K. Tolliver, Anna Wirz-Justice, Ian B. Hickie, and John F. Gottlieb.
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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 #CircadianRhythms #Chronotherapy #BipolarDisorder #SleepScience #LightTherapy #DarkTherapy #Melatonin #InterpersonalRhythmTherapy #MoodStability #Chronobiology
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A #SpaceMirror Will Test Turning Night Into Day. What To Know About the Controversial Project
by Jeffrey Kluger, Jul 14, 2026
Excerpt: "The company envisions multiple uses for sun-reflecting satellites: assisting search and rescue operations, allowing construction projects to operate around the clock, charging solar power stations, increasing crop yield. But critics cite all manner of risks. Human and animal #CircadianRhythms could be badly affected if the sun—or a simulacrum of it—never sets. The practice of changing the clocks by a mere hour twice a year is already known to mess with human sleep-wake cycles, after all. Plants could bloom when they shouldn’t and die before their time. Orbital mirrors flashing and winking back to Earth could distract airline pilots. Finally, #LightPollution is already interfering with astronomical observations—a problem made even worse by satellite constellations like #SpaceX’s 10,000-strong #Starlink fleet. #ReflectOrbital’s 50,000 birds would dwarf even that."
Read more:
https://time.com/article/2026/07/14/reflect-orbital-space-mirror-what-to-know/Archived version:
https://archive.ph/P4uaz#NightSkies #ElonSucks
#SpacePollution #SunReflectingSatellites #BadIdeas #SpaceTechBros #SendTechBrosToMars #FCCFail #BrendanCarr #WTF -
A #SpaceMirror Will Test Turning Night Into Day. What To Know About the Controversial Project
by Jeffrey Kluger, Jul 14, 2026
Excerpt: "The company envisions multiple uses for sun-reflecting satellites: assisting search and rescue operations, allowing construction projects to operate around the clock, charging solar power stations, increasing crop yield. But critics cite all manner of risks. Human and animal #CircadianRhythms could be badly affected if the sun—or a simulacrum of it—never sets. The practice of changing the clocks by a mere hour twice a year is already known to mess with human sleep-wake cycles, after all. Plants could bloom when they shouldn’t and die before their time. Orbital mirrors flashing and winking back to Earth could distract airline pilots. Finally, #LightPollution is already interfering with astronomical observations—a problem made even worse by satellite constellations like #SpaceX’s 10,000-strong #Starlink fleet. #ReflectOrbital’s 50,000 birds would dwarf even that."
Read more:
https://time.com/article/2026/07/14/reflect-orbital-space-mirror-what-to-know/Archived version:
https://archive.ph/P4uaz#NightSkies #ElonSucks
#SpacePollution #SunReflectingSatellites #BadIdeas #SpaceTechBros #SendTechBrosToMars #FCCFail #BrendanCarr #WTF -
Big Picture Science for June 29, 2026: Skeptic Check: Blue Light Special
Many of us know the feeling: we intend to go to bed but pull out our phones for one last scroll. Setting them aside hours later, we’re wide awake, unable to fall asleep. For years, scientists have singled out blue light emitted from our devices as the key culprit behind our post-scrolling insomnia, but the scientific consensus is shifting. Although blue light signals to brains that its daytime, surprising new research suggests that our glowing screens may play a smaller role than previously thought.
We present the fascinating science around biological mechanisms of sleep and wakefulness, why circadian rhythms have more in common with your grandfather’s clock than you might think, and why scientists who question the role of blue light in causing nighttime restlessness, still don’t let our phones off the hook completely.
Guests:
* Michael Gradisar – clinical psychologist and sleep researcher, former professor at Flinders University in Australia. Currently serves a head of Sleep Science at Sleep Cycle, a sleep tracking app company
* Jay Dunlap – geneticist and molecular geneticist at the Geisel School of Medicine at Dartmouth who works the molecular basis of circadian rhythms
* Mariana Figueiro – photobiologist, Director of the Light and Health Research Center and Professor of Population Health Science and Policy at the Icahn School of Medicine at Mount SinaiDownload podcast at - https://bigpicturescience.org/episodes/skeptic-check-blue-light-special
You can listen to this and other episodes at http://bigpicturescience.org/
Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!
#BlueLight #CircadianRhythms #Sleep #BigPictureScience #SETI #News #Podcast #Science
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Big Picture Science for June 29, 2026: Skeptic Check: Blue Light Special
Many of us know the feeling: we intend to go to bed but pull out our phones for one last scroll. Setting them aside hours later, we’re wide awake, unable to fall asleep. For years, scientists have singled out blue light emitted from our devices as the key culprit behind our post-scrolling insomnia, but the scientific consensus is shifting. Although blue light signals to brains that its daytime, surprising new research suggests that our glowing screens may play a smaller role than previously thought.
We present the fascinating science around biological mechanisms of sleep and wakefulness, why circadian rhythms have more in common with your grandfather’s clock than you might think, and why scientists who question the role of blue light in causing nighttime restlessness, still don’t let our phones off the hook completely.
Guests:
* Michael Gradisar – clinical psychologist and sleep researcher, former professor at Flinders University in Australia. Currently serves a head of Sleep Science at Sleep Cycle, a sleep tracking app company
* Jay Dunlap – geneticist and molecular geneticist at the Geisel School of Medicine at Dartmouth who works the molecular basis of circadian rhythms
* Mariana Figueiro – photobiologist, Director of the Light and Health Research Center and Professor of Population Health Science and Policy at the Icahn School of Medicine at Mount SinaiDownload podcast at - https://bigpicturescience.org/episodes/skeptic-check-blue-light-special
You can listen to this and other episodes at http://bigpicturescience.org/
Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!
#BlueLight #CircadianRhythms #Sleep #BigPictureScience #SETI #News #Podcast #Science
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"Did you know exposure to morning sunlight can regulate circadian rhythms within an hour?
Morning sunlight exposure triggers the release of serotonin & helps regulate body's internal clock. This leads to improved sleep quality & overall well-being.
"As the sun rises, our spirits lift, and we begin anew." - Unknown
How early would you wake up for some morning sunlight?
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#FCC Deciding Whether to Allow Startup to Launch Huge #MirrorSatellite to Blast Sunlight on Cities at Nighttime
"The implications for #wildlife, for all life, are enormous."
By Frank Landymore
Published Mar 10, 2026Excerpt: "The idea is as far-fetched as it is controversial. But something like it has been attempted before. In 1993, the Russian satellite Znamya, or 'Banner,' deployed a 65-foot-wide sheet of mylar that reflected a beam of light twice as bright as the Moon, illuminating a roughly three mile wide circle onto the Earth below like an orbital spotlight. It didn’t prove to be practical, however, with ground observers noticing no more than a flash of light, and it was exorbitantly expensive to pull off.
"Even so, it has the potential to massively disrupt the environment and interfere with many human operations. And the far-reaching consequences of such a technology is exposing the limits of the FCC’s remit.
"Experts fear that light from space mirrors could disrupt circadian rhythms in nature, posing a problem for flora and fauna alike. Animals might breed at the wrong time, and hibernating insects and migrating birds could be confused, Martha Hotz Vitaterna, a research professor of neurobiology at Northwestern University, told the NYT. And plants could bloom when pollinators aren’t active.
" 'The implications for wildlife, for all life, are enormous,' added Vitaterna, who is co-director of the Center for Sleep and Circadian Biology."
Read more:
https://futurism.com/space/fcc-huge-mirror-satellite#DarkSkies #LightPollution #BadIdea #USPol #Idiocracy #MirrorSatellites #CircadianRhythms
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#FCC Deciding Whether to Allow Startup to Launch Huge #MirrorSatellite to Blast Sunlight on Cities at Nighttime
"The implications for #wildlife, for all life, are enormous."
By Frank Landymore
Published Mar 10, 2026Excerpt: "The idea is as far-fetched as it is controversial. But something like it has been attempted before. In 1993, the Russian satellite Znamya, or 'Banner,' deployed a 65-foot-wide sheet of mylar that reflected a beam of light twice as bright as the Moon, illuminating a roughly three mile wide circle onto the Earth below like an orbital spotlight. It didn’t prove to be practical, however, with ground observers noticing no more than a flash of light, and it was exorbitantly expensive to pull off.
"Even so, it has the potential to massively disrupt the environment and interfere with many human operations. And the far-reaching consequences of such a technology is exposing the limits of the FCC’s remit.
"Experts fear that light from space mirrors could disrupt circadian rhythms in nature, posing a problem for flora and fauna alike. Animals might breed at the wrong time, and hibernating insects and migrating birds could be confused, Martha Hotz Vitaterna, a research professor of neurobiology at Northwestern University, told the NYT. And plants could bloom when pollinators aren’t active.
" 'The implications for wildlife, for all life, are enormous,' added Vitaterna, who is co-director of the Center for Sleep and Circadian Biology."
Read more:
https://futurism.com/space/fcc-huge-mirror-satellite#DarkSkies #LightPollution #BadIdea #USPol #Idiocracy #MirrorSatellites #CircadianRhythms
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RE: https://mastodon.social/@theperpetuallycurious8/115721794139714385
👁️ Did you know you have specialized eye cells that detect light but bypass your vision entirely? These retinal ganglion cells containing melanopsin send signals straight to your brain's master clock, responding most strongly to blue wavelengths around 480nm, helping synchronize your circadian rhythms with daily light cycles.
✍️ The original post in this thread traces how light becomes time through hidden pathways.
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🌅 Within you, billions of molecular clocks tick in coordinated patterns. From 90-minute sleep cycles to seasonal patterns in gene activity, your body orchestrates time across every scale.
Did you know your liver, heart, and skin each have their own circadian timing? ⚙️
✍️ Explore your inner clockwork: https://TPC8.short.gy/7G7SxGcA
⏰ You are not just living in time. You are made of it.
#Chronobiology #CircadianRhythms #BiologicalClocks #SleepScience #Neuroscience #SciComm #STEM #Biology #Brain #TPC8
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🌅 Within you, billions of molecular clocks tick in coordinated patterns. From 90-minute sleep cycles to seasonal patterns in gene activity, your body orchestrates time across every scale.
Did you know your liver, heart, and skin each have their own circadian timing? ⚙️
✍️ Explore your inner clockwork: https://TPC8.short.gy/7G7SxGcA
⏰ You are not just living in time. You are made of it.
#Chronobiology #CircadianRhythms #BiologicalClocks #SleepScience #Neuroscience #SciComm #STEM #Biology #Brain #TPC8
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🫰 Time isn’t just personal. It’s expensive.
🔍 According to a recent review of over 360 scientific studies (link in comment), the time change doesn’t deliver - medically or economically.
Help us push for smart, science-based time policies in Europe.
✍️ Sign & share the petition: https://action.wemove.eu/sign/2024-10-are-you-sick-and-tired-of-changing-the-clock-twice-a-year-EN
#SleepHealth #BioClock #CircadianRhythms #clockchange #summertime #wintertime #timechange #DaylightSaving #DST #DitchDST #nomoreDST #stopDST #Standardtime #NaturalTime
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🫰 Time isn’t just personal. It’s expensive.
🔍 According to a recent review of over 360 scientific studies (link in comment), the time change doesn’t deliver - medically or economically.
Help us push for smart, science-based time policies in Europe.
✍️ Sign & share the petition: https://action.wemove.eu/sign/2024-10-are-you-sick-and-tired-of-changing-the-clock-twice-a-year-EN
#SleepHealth #BioClock #CircadianRhythms #clockchange #summertime #wintertime #timechange #DaylightSaving #DST #DitchDST #nomoreDST #stopDST #Standardtime #NaturalTime
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@consilium.europa.eu
Thank you for finally agreeing that the time changes need to stop - watch today's session at 15:00.
Then sign and share the European petition, 27 languages - link in bio.
https://multimedia.europarl.europa.eu/en/webstreaming/plenary-session_20251023-0900-PLENARY
#StopTimeChange #summertime #wintertime #timechange #DST #DaylightSaving #naturaltime #europe #zeitumstellung #normalzeit #zeitumstellungabschaffen #stopptdiezeitdiebe #CircadianRhythms #BioClock #SleepHealth #gesundheit -
This is a really beautiful mix of ambient jazz and techno with some experimental and leftfield sounds by Caro. Also this is the first time my music has been played on Noods Radio (Bristol, UK), so that’s exciting too! Caro played 'Lumina' and that's the first track on my latest album To the Nines.
📻 https://noodsradio.com/shows/circadian-rhythms-w-caro-2nd-october-25
:bandcamp: https://socool.bandcamp.com/album/to-the-nines#radio #Noods #NoodsRadio #CircadianRhythms #AmbientJazz #ElectronicMusic #ExperimentalMusic #LeftfieldTechno #Bristol
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This is a really beautiful mix of ambient jazz and techno with some experimental and leftfield sounds by Caro. Also this is the first time my music has been played on Noods Radio (Bristol, UK), so that’s exciting too! Caro played 'Lumina' and that's the first track on my latest album To the Nines.
📻 https://noodsradio.com/shows/circadian-rhythms-w-caro-2nd-october-25
:bandcamp: https://socool.bandcamp.com/album/to-the-nines#radio #Noods #NoodsRadio #CircadianRhythms #AmbientJazz #ElectronicMusic #ExperimentalMusic #LeftfieldTechno #Bristol
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The IANT welcomes the Spanish government’s proposal to eliminate Daylight Saving Time by 2026 and return to a more natural time zone, aligned with solar time. ☀️ naturaltimealliance.org/
#SleepHealth #BioClock #CircadianRhythms #clockchange #summertime #wintertime #timechange #DaylightSaving #DST #DitchDST #nomoreDST #stopDST #Standardtime #NaturalTime
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You’re not just being dramatic — your internal clock is in chaos. 😵💫
Want to know why?
🧠 The science might surprise you.
👉 Learn more + sign the petition: https://action.wemove.eu/sign/2024-10-are-you-sick-and-tired-of-changing-the-clock-twice-a-year-EN
#SleepHealth #BioClock #CircadianRhythms #clockchange #DitchDST #nomoreDST #stopDST #Standardtime #NaturalTime
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🌍 Why are we still changing the clocks?
Our bodies run on light — not legislation.
Twice a year, millions of people face disrupted sleep, reduced focus, and even increased health risks… all because of outdated time policies.It’s time for a change.
✍️ Sign the petition: https://action.wemove.eu/sign/2024-10-are-you-sick-and-tired-of-changing-the-clock-twice-a-year-EN
📣 Share this and tag someone who’s also sick and tired of it!
#SleepHealth #BioClock #CircadianRhythms #DitchDST #NaturalTime #clockchange #nomoreDST #stopDST #standardtime #naturaltime
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🌍 Why are we still changing the clocks?
Our bodies run on light — not legislation.
Twice a year, millions of people face disrupted sleep, reduced focus, and even increased health risks… all because of outdated time policies.It’s time for a change.
✍️ Sign the petition: https://action.wemove.eu/sign/2024-10-are-you-sick-and-tired-of-changing-the-clock-twice-a-year-EN
📣 Share this and tag someone who’s also sick and tired of it!
#SleepHealth #BioClock #CircadianRhythms #DitchDST #NaturalTime #clockchange #nomoreDST #stopDST #standardtime #naturaltime
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Switching to permanent #standardtime would prevent about 300,000 cases of #stroke per year and result in 2.6 million fewer people with #obesity by better aligning #circadianrhythms with natural light.
"We found that staying in standard time or staying in #daylightsavingtime is definitely better than switching twice a year," senior researcher #JamieZeitzer said.
An out-of-sync #circadian cycle has been linked with many different poor #health outcomes, researchers said.
https://www.usnews.com/news/health-news/articles/2025-09-16/permanent-standard-time-could-cut-strokes-obesity-among-americans -
Switching to permanent #standardtime would prevent about 300,000 cases of #stroke per year and result in 2.6 million fewer people with #obesity by better aligning #circadianrhythms with natural light.
"We found that staying in standard time or staying in #daylightsavingtime is definitely better than switching twice a year," senior researcher #JamieZeitzer said.
An out-of-sync #circadian cycle has been linked with many different poor #health outcomes, researchers said.
https://www.usnews.com/news/health-news/articles/2025-09-16/permanent-standard-time-could-cut-strokes-obesity-among-americans -
How Tiny Molecular Machines Keep Our Cells Alive and Thriving
#CellBiology #AgingScience #Telomeres #OxidativeStress #Mitochondria #CircadianRhythms #StemCells #Genetics #CancerResearch #HealthAndWellness
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How Your Brain Forms Memories: The Role of Long-Term Potentiation
#Neuroscience #BrainPlasticity #Neuroplasticity #LongTermPotentiation #SynapticConnections #Glutamate #Neurotransmitters #CalciumSignaling #GlialCells #CircadianRhythms #BrainHealth #MemoryFormation #Learning #NeuroscienceEducation #BrainScience
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In our most recent episode Dr. Raffaele Teperino joined us for a deep dive into how paternal health before conception impacts offspring and maternal outcomes.
We explore epigenetics, circadian rhythms, seminal fluid signaling, and metabolic programming—challenging long-held views on intergenerational health.
Listen here: https://activemotif.com/podcasts-raffaele-teperino
#Epigenetics #PaternalHealth #SciencePodcast #CircadianRhythms #MetabolicHealth -
Dr. Raffaele Teperino joins us for a deep dive into how paternal health before conception impacts offspring and maternal outcomes.
We explore epigenetics, circadian rhythms, seminal fluid signaling, and metabolic programming—challenging long-held views on intergenerational health.
Listen here: https://activemotif.com/podcasts-raffaele-teperino
#Epigenetics #PaternalHealth #SciencePodcast #CircadianRhythms #MetabolicHealth -
Here is my first post on Mastadoom.
Had a fantastic time presenting my PhD research on neurogenetics at the UK Clock Club Meeting! It was a great opportunity to share my work on genetic influences on circadian rhythms and engage in insightful discussions with experts in the field.
Grateful for the valuable feedback and inspiring conversations—excited to take these ideas forward in my research!
@kofanchen#UKClockClub #Neurogenetics #CircadianRhythms #PhDResearch #Sleep”
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Exploring the Marvels of Our Brain: The Symphony of Sensory Modulation and Connectivity
#BrainScience #Neuroscience #CognitiveHealth #SensoryModulation #CircadianRhythms #Euthymia #FunctionalConnectivity #Neurophysiology #MentalWellness #BrainPower #Mindfulness #HealthyMind #LearnAboutTheBrain #NeuroNetworks #CelebrateYourBrain
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Unlocking the Secrets of Brain Science: Moods, Rhythms, and Neurochemistry
#BrainScience #Neuroscience #MoodManagement #Serotonin #CircadianRhythms #NeuroEndocrine #MentalHealth #NeuroImmune #GoodVibes #BrainHealth #Psychology #MoodTheory #ScienceExplained #WellnessJourney
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Woke up just before the top of the hour this morning, and instantly it started playing in my head…
Almost 7…
West Virginia…
Check me OUT of this John Denver timeline…
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Woke up just before the top of the hour this morning, and instantly it started playing in my head…
Almost 7…
West Virginia…
Check me OUT of this John Denver timeline…
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Science has uncovered the role of light in mood changes and mental disorders https://www.psypost.org/science-has-uncovered-the-role-of-light-in-mood-changes-and-mental-disorders/?utm_source=dlvr.it&utm_medium=mastodon #MentalHealth #CircadianRhythms #MoodDisorders #LightTherapy #Depression
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“Year-round Standard Time has the potential to promote healthier circadian rhythms on a population level.” #CircadianRhythms #DitchDST
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“Year-round Standard Time has the potential to promote healthier circadian rhythms on a population level.” #CircadianRhythms #DitchDST
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Daylight Saving Time makes us set alarms an hour earlier than Standard Time. Permanent Standard Time aligns clocks to the sun, for naturally better sleep! #DitchDST #SleepHealth #CircadianRhythms
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Daylight Saving Time makes us set alarms an hour earlier than Standard Time. Permanent Standard Time aligns clocks to the sun, for naturally better sleep! #DitchDST #SleepHealth #CircadianRhythms
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⏰🔄 The magic happens in the proteins!
We found that 10% of proteins and a whopping 66% of phosphorylated proteins in O. tauri follow daily rhythms. It's a microscopic dance in time with the light. #ProteinDance #CircadianRhythms 2/7
➡️ https://doi.org/10.1093/jxb/erad290 -
⏰🔄 The magic happens in the proteins!
We found that 10% of proteins and a whopping 66% of phosphorylated proteins in O. tauri follow daily rhythms. It's a microscopic dance in time with the light. #ProteinDance #CircadianRhythms 2/7
➡️ https://doi.org/10.1093/jxb/erad290 -
@DesrochersLab Circadian rhythms are fascinating. They rule the lives of almost all organisms (bar those that live beyond the reach of sunlight).
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@DesrochersLab Circadian rhythms are fascinating. They rule the lives of almost all organisms (bar those that live beyond the reach of sunlight).
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12-JUL-2024
Melanopsin DNA aptamers can regulate input signals of mammalian #CircadianRhythms by altering the phase of the molecular clock
#DNAaptamers Melapts to wake up refreshed in the morning.https://www.eurekalert.org/news-releases/1051176 #science #LightAndLife
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Recent research emphasizes the significant impact of aligning cancer immunotherapy with the circadian clock. This approach optimizes treatment effectiveness and reduces side effects by synchronizing therapies with the body’s natural rhythms. Integrating circadian biology into cancer treatment represents a significant leap forward in personalized and patient-centered healthcare.
#CancerTreatment #Immunotherapy #CircadianRhythms #PersonalizedMedicine
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Why #LightPollution is a solvable #environmental crisis
Excessive #OutdoorLighting is deadly to #animals and takes a toll on #HumanHealth and wellbeing, too. But when it comes to large-scale environmental problems, this one may be a relatively easy fix.
By Alissa Greenberg
Friday, April 1, 2022"In recent decades, lightbulbs made with #LEDs arrived, a revolution in energy efficiency with seemingly little downside. After all, an #LED bulb converts some 90% of the electricity it uses into light, whereas a conventional incandescent bulb only converts about 10%. And LED bulbs are touted as lasting up to 25 times longer.
"But the physics of LEDs make them fundamentally different from incandescents. While those traditional bulbs put out warm white light made of all colors mixed together, LEDs filter blue-rich light through a specialized phosphor material, producing light that appears white to the human eye but is still more blue-intense than incandescents’ light.
"But #BlueLight is also the most disruptive to our #nighttime environment because it mimics daylight, disrupting the hormone production and sleep cycles of both animals and humans.
"#Melatonin, one of those hormones, helps the immune system destroy renegade cells dividing out of control. That can lead to other health issues, including heightened rates of #cancer. And, 'we’re not the only ones who produce melatonin,' says Mario Motta, a cardiologist and trustee of the American Medical Association. Even amoebae produce melatonin'—meaning even amoebae might be vulnerable to light at night.
"The impacts of light pollution are evident everywhere from human health to astronomy research, but they come into particular focus in the recent phenomenon of global species #dieoffs. Between 100 million and a billion birds die every year due to light pollution, according to Massachusetts IDA chapter president James Lowenthal. New York City recently dealt with a huge die-off, 'with flocks of #MigratoryBirds slamming into buildings,' says Sarah Bois, an ecologist at the island’s Linda Loring Nature Foundation and a member of Nantucket Lights. 'They’re attracted to light.' A 2015 study at New York’s 9/11 'Tribute in Light'' installation showed an increase from 500 birds within half a kilometer of the light beams before they were turned on to 15,700 just minutes after.
"The issue is a double whammy for birds because they rely on #insects for food—and those populations are plummeting, with light pollution contributing significantly to the so-called "#InsectApocalypse.” By some estimates, one third of insects attracted to light sources at night die before morning, either due to exhaustion or because they get eaten. And according to a study in Germany, the number of insects in that country alone that die after being attracted to lights can number 100 billion or more in a single summer.
"Some starve to death searching for food that should appear bluer at twilight but is lit up amber under streetlights, says insect conservationist Avalon Owens, a doctoral candidate at Tufts University. Some are thrown off by light just the way we are, because of their #CircadianRhythms. #Pollinators whose schedules are altered by artificial light miss the #flowers they’re evolutionarily paired with, if the flowers naturally close and open with the warmth of the sun. And insects that rely on circadian rhythms for their yearly development don’t hibernate in time for winter and freeze to death.
"On #Nantucket, these phenomena are of particular concern because the island is home to a remarkably healthy population of northern long-eared #bats, which are endangered. Like many birds, the bats rely on insects for food and are easily dazzled by light, putting them in increasing jeopardy. Jack Dubinsky, director of the Maria Mitchell Aquarium on Nantucket, says he’s concerned that adding increasingly lit-up nights to the challenges of #ClimateChange, water quality, and #ecosystem collapse could put huge pressure on some already struggling species. 'The more curveballs we throw, the less likely they’ll be able to find their way,' he says.
Read more:
https://www.pbs.org/wgbh/nova/article/light-pollution-led-nantucket-solutions/ -
No two #worms are alike: New study confirms that even the simplest marine organisms tend to be individualistic https://www.awi.de/en/about-us/service/press/single-view/kein-wurm-tickt-wie-der-andere.html
Molecular #CircadianRhythms are robust in marine #annelids lacking rhythmic behavior https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3002572
"even simple marine #polychaete worms shape their day-to-day lives on the basis of highly individual rhythms. This diversity is of interest not just for the future of species and populations in a changing environment, but also for medicine."
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Had a dream that I met a group of people who’d found that the key to #immortality was never sleeping & that never sleeping was possible providing you kept finding things to occupy your mind . They were all immortal but insane; their brains stretched beyond their limits. Can’t work out if my unconscious is trying to tell me to #sleep more or sleep less. #dreams #circadianrhythms #SleepDeprivation
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How deepest sea dwellers adapted to their environment https://phys.org/news/2023-06-scientists-reveal-deepest-sea-dwellers.html
Chromosome-level #genome assembly of #HadalSnailfish reveals mechanisms of #DeepSea adaptation in vertebrates https://elifesciences.org/reviewed-preprints/87198v1
"The complete absence of light in the #HadalZone appears to have had a profound effect on the #fish. The scientists observed a substantial loss of many #genes related to vision. In addition, many genes related to #CircadianRhythms were absent."
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Plants have body clocks that regulate their growth and responses to the environment. Light-sensitive proteins reset their clocks daily, affecting their interactions with pests and diseases. Consider these clocks when cultivating and managing plants.
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https://www.nature.com/articles/s41586-023-06009-4
"Cry engages a continuous core of amino-terminal Tim armadillo repeats, resembling how #photolyases recognize damaged DNA, and binds a C-terminal Tim helix, reminiscent of the interactions between light-insensitive #cryptochromes and their partners in mammals..a phosphorylated segment in Tim may impact clock period by regulating the binding of Importin-α and the nuclear import of Tim–Per"
#circadianRhythms #Drosophila #genetics #geneRegulation #oscillator #periodicity
