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.
Using e-cigarettes may lead to an accumulation of fat in the liver, a study of mice exposed to the devices suggests.
Cellular energy metabolism also follows the rhythm of the circadian clock. A University of Basel study has now shown exactly how this works by revealing the relationship between the circadian rhythm and the mitochondrial network for the first time.
What do bad sleep habits and stiff blood vessels have in common? Nothing good, say scientists exploring what appears to be a direct connection between a circadian clock that isn't working as it should and an enzyme that promotes inflammation working overtime.
Researchers have mapped primate gene expression throughout the day and discovered that the majority of critical gene activity is time dependent, which may aid the development of new treatments for many diseases.
About 15 million Americans don't have a typical nine-to-five workday, and many of these--nurses, firefighters and flight attendants, among many other professions--may see their schedule change drastically one week to the next.
Disrupted circadian rhythm patterns could be an early sign of Alzheimer's disease, finds new study.
People with Alzheimer's disease are known to have disturbances in their internal body clocks that affect the sleep/wake cycle and may increase risk of developing the disorder.
Scientists at the Centre for Research in Agricultural Genomics (CRAG) in Spain have identified the members of a protein family linked with the internal clocks of plants that act sequentially to restrict plant growth until just before daylight, according to a new study published in the journal Current Biology.
We may have a new reason, in addition to vitamin D generation, to bask in a little sunshine. A breakthrough study by University of Alberta researchers has shown the fat cells that lie just beneath our skin shrink when exposed to the blue light emitted by the sun.
Sleeping sickness could use a more encompassing moniker. An international study from the O'Donnell Brain Institute shows one of Africa's most lethal diseases is actually a circadian rhythm disorder caused by the acceleration of biological clocks controlling a range of vital functions besides sleep.
Tumor cells use the unfolded protein response to alter circadian rhythm, which contributes to more tumor growth, Hollings Cancer Center researchers at the Medical University of South Carolina find.
Though sleep is essential to health and wellbeing, the unique barriers faced by women in maintaining good sleep health are often misunderstood or overlooked, according to a new resource "Women & Sleep: A Guide for Better Health" developed by the Society for Women's Health Research Interdisciplinary Network on Sleep.
An innovative new study from the University of Surrey and Cambridge's MRC Laboratory of Molecular Biology, published in the prestigious journal Nature Communications, has uncovered the secrets of the circadian rhythms in red blood cells and identified potassium as the key to unraveling the mystery.
Insights into how the body clock and time of day influence immune responses are revealed today in a study published in leading international journal Nature Communications.
Can orange light therapy help people who have serious mental disorders? Who hear voices and see things that aren't there? Or who are thinking about committing suicide?
Scientists have long sought to unravel the molecular mysteries that make the human brain special: What processes drove its evolution through the millennia? Which genes are critical to cognitive development?
A new study conducted at the Medical Research Council (MRC) Laboratory of Molecular Biology, UK, has found how wound healing is regulated by the body clock in such a way that injuries that occured at daytime heal nearly 60% faster than that at night.
A new Finnish study shows that individual circadian preference is associated with brain activity patterns during the night.
Can environmental toxins disrupt circadian rhythms - the biological "clock" whose disturbance is linked to chronic inflammation and a host of human disorders? Research showing a link between circadian disruption and plankton that have adapted to road salt pollution puts the question squarely on the table.
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.