Circadian Rhythm is the regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, feeding, etc. This rhythm seems to be set by a 'biological clock' which seems to be set by recurring daylight and darkness.
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.
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.
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.
Circadian rhythms may play a crucial role in the recovery of consciousness of patients with severe brain injuries, a study published in Neurology.
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.
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.
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.
Until recently, work on biological clocks that dictate daily fluctuations in most body functions, including core body temperature and alertness, focused on neurons, those electrically excitable cells that are the divas of the central nervous system.
According to a nutrition study led by the German Institute of Human Nutrition, a partner of the German Center for Diabetes Research, the so-called internal clock also influences how people with impaired glucose metabolism react to carbohydrate-rich food.
A new study suggests that the melatonin content of dietary supplements often varies widely from what is listed on the label.
Daylight savings time contributes to higher miscarriage rates among women undergoing in vitro fertilization who had had a prior pregnancy loss according to new research out of Boston Medical Center and IVF New England.
New sleep research has shown that by respecting nature and keeping days light and nights dark we can improve our sleep patterns.
Many firefighters suffer acute and chronic sleep deficiency and misalignment of their circadian rhythm (body clock) due to extended shifts and long work weeks.
A clump of just a few thousand brain cells, no bigger than a mustard seed, controls the daily ebb and flow of most bodily processes in mammals -- sleep/wake cycles, most notably.
A new study from the laboratory of Hiroki Ueda at the RIKEN Quantitative Biology Center investigates circadian timekeeping with a novel approach to creating genetic knock-out rescue mice.
Anyone who has drifted into a fuzzy-headed stupor after a large holiday meal is familiar with the condition commonly known as a "food coma."
Molecular clocks in cells throughout the body control many physiologic changes in a 24-hour day/night circadian rhythm -- among them the timing of sleep and wakefulness.
Particular eating behaviors may lower the risk of developing non-alcoholic fatty liver disease (NAFLD), according to research presented this week at The Liver Meeting — held by the American Association for the Study of Liver Diseases.
Some people adapt easily to shift work, but not everyone can handle constant disruptions to their daily rhythm. Finnish researchers have now found that a melatonin receptor gene influences tolerance to shift work.
An interdisciplinary team of researchers at the University of Georgia has developed a new technology that may help scientists better understand how an individual cell synchronizes its biological clock with other cells.