The eye’s light-sensing retina taps different circuits depending on whether it is generating image-forming vision or carrying out a non-vision function such as regulating pupil size or sleep/wake cycles, according to a new mouse study from the National Eye Institute (NEI) and the National Institute of Mental Health (NIMH).
He set out to research the effect of polar day-night patterns on seizure frequency and epilepsy. He found something he never expected: a public health crisis in one of the wealthiest countries in the world, relevant to geographically isolated communities and Indigenous peoples.
Cancer alters the circadian rhythm functions, which results in fatigue and disrupted sleep/wake patterns. Dr. Horng-Shiuann Wu studies how using extremely bright light to “reset” a female breast cancer patient’s internal clock can help them sleep better.
A new study finds that more access to daylight at home improves circadian alignment, sleep and mental health in healthy adults.
Based on data for 344 volunteers, Brazilian researchers compared the physical and mental health benefits of workouts led in person by a fitness instructor, unsupervised online sessions, and classes supervised remotely via video call
Genetic predisposition plays a role in individuals’ reaction to abrupt change in sleep schedule; findings could have implications for other situations
Key factors for determining shift length will help manage fatigue-related risks while meeting operational demands
Light activates the circadian clock gene Period1 in a brain region that affects the mood
Researchers from the Centre for Sleep and Cognition at the NUS Yong Loo Lin School of Medicine found mindfulness-based therapy to be more effective than an active sleep hygiene programme in improving sleep quality
Researchers find time of day eating milk chocolate can impact regulation of body weight
Data from more than 163,000 Fitbit users allow large-scale analysis of sleep variables
Number of veterans seen at VHA TeleSleep locations tripled between 2017 and 2020
In a recent survey of published animal studies, researchers at West Virginia University found disregarding the animals’ circadian rhythms can hamper reproducibility, reliability and validity.
Study suggests that circadian factors can influence performance of collegiate athletes
Study emphasizes importance of early interventions to address insomnia symptoms in children
Circadian misalignment is a potential risk factor for substance use
There is a long-held belief that having your pet sleep on the bed is a bad idea. Aside from taking up space, noisy scratching, or triggering allergies, the most common assertion averred that your furry companion would disrupt your sleep.
A new study in the journal Sleep finds that increased evening screen time during the Covid-19 lockdown negatively affects sleep quality. During the lockdown period in Italy, daily internet traffic volume almost doubled compared to the same time in the…
Hillary Rowe and Jennifer McGrath say their study upends common beliefs about sharing the bed with four-legged friends
The biological clock is present in almost all cells of an organism. As more and more evidence emerges that clocks in certain organs could be out of sync, there is a need to investigate and reset these clocks locally. Scientists…
Rough night of sleep? Relying on caffeine to get you through the day isn’t always the answer, says a new study from Michigan State University. Researchers from MSU’s Sleep and Learning Lab, led by psychology associate professor Kimberly Fenn, assessed…
Get a front row seat to the premier sleep research event June 10-13
Recording the electrostatic energy of honeybee hives offers a ‘canary in the coalmine’ look into ecosystem threats and environmental conditions
Understanding the complex network of genes controlling sleep cycles in people, animals, plants can lead to advances in human health, crop production
Journal of the American Geriatrics Society research summary
Despite the dramatic difference between day and nightlife, how fish exploit different times of day has not been studied systematically. Scientists explored alterations in the circadian timing of activity and the duration of rest-wake cycles in Lake Malawi’s cichlids and identified the first single nocturnal species. Timing and duration of rest and activity varies dramatically, and continuously, between populations of Lake Malawi cichlids, providing a system for exploring the molecular and neural basis underlying variation in nocturnal activity.
New research led by investigators from Boston Medical Center and Grady Memorial Hospital demonstrates the significant decline in hospitalizations for neurological emergencies during the COVID-19 pandemic. The rate of Subarachnoid hemorrhage (SAH) – bleeding in the space between the brain…
An aggressive type of brain cancer, glioblastoma has no cure. Patients survive an average of 15 months after diagnosis, with fewer than 10% of patients surviving longer than five years. While researchers are investigating potential new therapies via ongoing clinical trials, a new study from Washington University in St. Louis suggests that a minor adjustment to the current standard treatment — giving chemotherapy in the morning rather than the evening — could add a few months to patients’ survival.
DARIEN, IL – Four members of the American Academy of Sleep Medicine have been selected as 2021 AASM awards recipients for their contributions to the field of sleep medicine. This year’s award winners will be recognized during the plenary session…
The Sleep Research Society (SRS) has selected four sleep and circadian scientists as recipients of the 2021 Sleep Research Society awards, which recognize excellence in sleep and circadian research. This year’s award winners will be recognized during the plenary session…
Technique developed at OHSU measures brain’s waste-clearance system through MRIs
New clues as to why night shift workers are at increased risk of developing certain types of cancer are presented in a new study conducted at Washington State University Health Sciences Spokane.
SPOKANE, Wash. – New clues as to why night shift workers are at increased risk of developing certain types of cancer are presented in a new study conducted at Washington State University Health Sciences Spokane. Published online in the Journal…
While EU cities have worked on improving urban lighting services, this has mostly focussed on efficiency, reducing costs and lowering emissions. Yet, it has failed to consider the effect urban lighting may have on citizens’ health and wellbeing. This will…
Life-saving oxygen for premature infants may disrupt the circadian rhythms in their lungs, making them more vulnerable to influenza infections as adults
LA JOLLA–(February 25, 2021) Professors Satchin Panda and Tatyana Sharpee have both been recognized for their contributions and dedication to advancing science through research by being named to endowed chairs at the Salk Institute. Satchin Panda, named to the Rita…
Associations based on observational data show risk of developing heart disease in men and vary by time of day; similar link not seen in women
Thanks to a unique imaging instrument, scientists at UNIGE are revealing that cellular clocks in a given organ can be synchronized without the intervention of external signals
New article unravels the remarkable relationship between time-of-day and physiology
The clinical research conducted through the Center will investigate how to use light to improve people’s lives by stabilizing their circadian rhythms, the natural internal clock that regulates the body’s sleep-wake cycle. Researchers will study how light, either from daylight or electric indoor light, affects circadian rhythms in various populations, from the very young to the very old, including patients with COVID-19, cancer, Alzheimer’s disease, depression, and other illnesses. The goal is to help abate symptoms and improve their sleep, mental health, and cognition.
People living in regions with high levels of outdoor artificial light at night may face a higher risk of developing thyroid cancer. The finding comes from a study published early online in CANCER , a peer-reviewed journal of the American…
We’ve all felt stressed at some point, whether in our personal or professional lives or in response to exceptional circumstances like the COVID-19 pandemic.
We’ve all felt stressed at some point, whether in our personal or professional lives or in response to exceptional circumstances like the COVID-19 pandemic. But until now there has been no way to quantify stress levels in an objective manner.…
The Institute for Scientific Information on Coffee (ISIC) published a new report today, titled ‘Coffee and sleep in everyday lives’, authored by Professor Renata Riha, from the Department of Sleep Medicine at the University of Edinburgh.
In 2017, the Nobel Prize in Physiology or Medicine went to three scientists who uncovered the molecular mechanisms that control the circadian rhythm, otherwise known as the “wake-sleep” cycle. To carry out their work, the scientists used the common fruit…
Sleep cycles in people oscillate during the 29.5-day lunar cycle: In the days leading up to a full moon, people go to sleep later in the evening and sleep for shorter periods of time. Scientists observed these oscillations in urban and rural settings — regardless of an individual’s access to electricity.
University of California San Diego School of Medicine and Moores Cancer Center researchers report that intermittent fasting reduced breast cancer risk in obese mice.
Waste clearance is crucial for brain health, preventing neurodegenerative disease
DARIEN, IL – Editors of the Journal of Clinical Sleep Medicine have identified some of the most significant articles in the publication’s history, publishing new commentaries on them in a special 15th anniversary collection . The 15 commentaries from associate…
Macrophages, the killer cells of the immune system, are controlled by circadian rhythms, a finding which may indicate that our ability to fight disease relies more heavily on daily circadian cycles than previously assumed.