Circadian Rhythm News and Research

Latest Circadian Rhythm News and Research

Researchers identify link between circadian rhythm disturbance and brain dysfunction

Researchers at Okayama University describe in the Journal of Neuroscience that a certain protein known to play a major role in circadian rhythmicity — humans’ intrinsic 24-hour biological cycle — is also key to proper brain functioning.

31 Oct 2017

Smell sensitivity changes over the course of each day, study suggests

It has always been apparent that some individuals have a better sense of smell than others, but a new study of 37 teens provides the first direct evidence that within each person, smell sensitivity varies over the course of each day. The pattern, according to the data, tracks with the body's internal day-night cycle, or circadian rhythm.

26 Oct 2017

Researchers discover circadian clock at work in our muscles

Biological clocks are ticking everywhere throughout our body. They trigger the release of the hormone melatonin during sleep, favour the secretion of digestive enzymes at lunchtime or keep us awake at the busiest moments of the day.

3 Oct 2017

Experts discuss link between breast milk components, circadian variation, and infant health

The fat content and levels of several key nutrients and hormones in breast milk vary with the mother's circadian rhythm, which may have implications for the timing of breastfeeding and feeding of expressed milk, especially for high-risk infants.

19 Sep 2017

Immune response to parasite varies depending on what time infection occurs, study shows

Does the time of day matter when our body is infected by a parasite? According to new research from McGill University, it matters a great deal.

11 Sep 2017

Scientists propose new theory that ADHD may be linked to lack of regular circadian sleep

Around 75% of children and adults with Attention Deficit Hyperactivity Disorder (ADHD) also have sleep problems, but until now these have been thought to be separate issues.

4 Sep 2017

Animal study shows how being bullied can have dramatic effects on sleep

New research from McLean Hospital neuroscientists shows in an animal model that being bullied can have long-term, dramatic effects on sleep and other circadian rhythm-related functions, symptoms that are characteristic of clinical depression and other stress-induced mental illnesses.

10 Aug 2017

Blue light from digital devices decreases sleep quality

There's no doubt we love our digital devices at all hours, including after the sun goes down. Who hasn't snuggled up with a smart phone, tablet or watched their flat screen TV from the comfort of bed? A new study by researchers at the University of Houston College of Optometry, published in Ophthalmic & Physiological Optics, found that blue light emitted from those devices could contribute to the high prevalence of reported sleep dysfunction.

28 Jul 2017

Variation in sleep patterns between age groups linked to evolutionary adaptation, study finds

A study conducted on the Hadza people in Tanzania suggests a natural variation in sleeping patterns among people living in groups, where there is rarely a moment when someone isn’t vigilant enough to raise an alarm.

12 Jul 2017

Study sheds light on night work−cancer link

A new study has offered insights into the association between night shift work and increased cancer risk, as well as pointing towards a potential solution. For several years, scientists have thought that disruption to the body’s natural circadian rhythm is accountable for the increased cancer risk, but the mechanisms behind this have not yet been pinpointed.

27 Jun 2017

Chronic lack of sleep reduces cognitive abilities, negatively impacts physical health

A chronic lack of sleep not only impairs cognitive abilities but also increases the risk of heart disease and diabetes.

24 Jun 2017

Scientists reveal 12-hour autonomous biological clock that coordinates bodily functions

Some bodily activities, sleeping, for instance, mostly occur once every 24 hours; they follow a circadian rhythm. Other bodily functions, such as body temperature, cognitive performance and blood pressure, present an additional 12-hour cycle, but little is known about the biological basis of their rhythm.

6 Jun 2017

Meal-times help to regulate our body clock, study finds

The human body works according to a roughly 24-hr cycle. It is controlled by a master clock in the brain and by peripheral clocks in other parts of the body, which are synchronized according to external cues such as light.

2 Jun 2017

UAB professor receives $1.5 million grant to explore links between circadian fluctuations and glaucoma

Brian Samuels, M.D., Ph.D., assistant professor in the University of Alabama at Birmingham Department of Ophthalmology, has received a five-year, $1.5 million grant from the National Eye Institute to explore the links between circadian fluctuations and glaucoma. This is Samuels' first R01 grant.

22 May 2017

Disrupting the circadian clock can alter gut microbiome and the body's response to diet

Researchers at Baylor College of Medicine have discovered that changing the circadian clock in mouse liver can alter how the body responds to diet and also change the microbes living in the digestive track.

4 May 2017

Synchronized voltage rhythms in SCN could play role in maintaining the body’s circadian clock

Cells in the brain's master circadian clock synchronize voltage rhythms despite asynchronous calcium rhythms, which might explain how a tissue-wide rhythm is maintained.

24 Apr 2017

Circadian rhythms may play critical role in recovery of consciousness in brain-injured patients

Circadian rhythms may play a crucial role in the recovery of consciousness of patients with severe brain injuries, a study published in Neurology.

20 Apr 2017

Study finds link between circadian variations in body temperature and arousal in brain-injured patients

For people with severe brain injuries, researchers have found that the rhythm of daily fluctuations in body temperature is related to their level of consciousness, according to a preliminary study published in the April 19, 2017, online issue of Neurology, the medical journal of the American Academy of Neurology.

20 Apr 2017

Gene CRY1 variant alters circadian clock contributing to delayed sleep phase disorder, study finds

If all your life, you have been functioning best in the evening and night compared to the mornings, a gene mutation may be a reason.

10 Apr 2017

Light environment in intensive care affects how patients feel, research shows

New research shows that the light environment in intensive care affects how patients feel - even a year after completed hospitalization. With light adapted to the time of day, health even improves for patients who are barely conscious when they are admitted for care.

3 Apr 2017

Circadian Rhythm News and Research

Latest Circadian Rhythm News and Research

Researchers identify link between circadian rhythm disturbance and brain dysfunction

Smell sensitivity changes over the course of each day, study suggests

Researchers discover circadian clock at work in our muscles

Experts discuss link between breast milk components, circadian variation, and infant health

Immune response to parasite varies depending on what time infection occurs, study shows

Scientists propose new theory that ADHD may be linked to lack of regular circadian sleep

Animal study shows how being bullied can have dramatic effects on sleep

Blue light from digital devices decreases sleep quality

Variation in sleep patterns between age groups linked to evolutionary adaptation, study finds

Study sheds light on night work−cancer link

Chronic lack of sleep reduces cognitive abilities, negatively impacts physical health

Scientists reveal 12-hour autonomous biological clock that coordinates bodily functions

Meal-times help to regulate our body clock, study finds

UAB professor receives $1.5 million grant to explore links between circadian fluctuations and glaucoma

Disrupting the circadian clock can alter gut microbiome and the body's response to diet

Synchronized voltage rhythms in SCN could play role in maintaining the body’s circadian clock

Circadian rhythms may play critical role in recovery of consciousness in brain-injured patients

Study finds link between circadian variations in body temperature and arousal in brain-injured patients

Gene CRY1 variant alters circadian clock contributing to delayed sleep phase disorder, study finds

Light environment in intensive care affects how patients feel, research shows

Small solutions for big problems in drug discovery and delivery

Professor Nancy Ip: Pioneering New Paths in Neurodegenerative Therapy

Utilizing process Raman in optimizing cultivated meat production

Circadian Rhythm News and Research

Latest Circadian Rhythm News and Research

Small solutions for big problems in drug discovery and delivery

Professor Nancy Ip: Pioneering New Paths in Neurodegenerative Therapy

Utilizing process Raman in optimizing cultivated meat production

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