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Central and peripheral signals set the circadian liver clock
Anyone who has experienced jet lag will understand the importance of a smooth-running circadian clock. Crossing time zones decouples our biological rhythms from the natural cycle of light and dark we're used to. view more (2007-01-30)
First human gene implicated in regulating length of human sleep
Scientists have discovered the first gene involved in regulating the optimal length of human sleep, offering a window into a key aspect of slumber, an enigmatic phenomenon that is critical to human physical and mental health. view more (2009-08-14)
UNC study supports role of circadian clock in response to chemotherapy
For years, research has hinted that the time of day that cancer patients receive chemotherapy can impact their chances of survival. But the lack of a clear scientific explanation for this finding has kept clinicians from considering timing as a factor in treatment. view more (2009-01-13)
UNC study: Tinkering with the circadian clock can suppress cancer growth
Researchers at the University of North Carolina at Chapel Hill have shown that disruption of the circadian clock - the internal time-keeping mechanism that keeps the body running on a 24-hour cycle - can slow the progression of cancer. view more (2009-02-04)
Mom's mood, baby's sleep: what's the connection?
If there's one thing that everyone knows about newborn babies, it's that they don't sleep through the night, and neither do their parents. view more (2008-09-02)
Bright light therapy eases bipolar depression for some
Bright light therapy can ease bipolar depression in some patients, according to a study published in the journal Bipolar Disorders. view more (2008-01-04)
Study identifies food-related clock in the brain
In investigating the intricacies of the body's biological rhythms, scientists at Beth Israel Deaconess Medical Center (BIDMC) have discovered the existence of a "food-related clock" which can supersede the "light-based" master clock that serves as the body's primary timekeeper. view more (2008-05-23)
Travelers can avoid jet lag by resetting their body clocks
A simple, at-home treatment - a single light box and the over-the-counter drug melatonin - allows travelers to avoid jet lag by resetting their circadian body clock before crossing several time zones. view more (2005-11-02)
New Evidence on How our Eyes use Light to Manage our Body Clock - University of Surrey Groundbreaking Study Results
A new study published this week shows for the first time that the human eye is sensitive to short wave length visible light and transmits information to the body clock in a way that may make it possible to manipulate waking and sleeping rhythms. This new data, gained from a study carried out at the University of Surrey, might enable this type of... view more... (2001-08-20)
Why missing out on a good night's sleep could give you ulcers
Missing out on a good night's sleep through long haul travel, shift work, or partying could increase the risk of ulcers. Research in Gut shows that levels of a chemical, produced by the stomach and small intestine to repair tissue damage, are highest at night, and are suppressed after a meal. Twelve healthy, 20 to 24 year old non-smokers were... view more... (2001-04-10)
Searching for shut eye: Penn study identifies possible sleep gene
While scientists and physicians know what happens if you don't get six to eight hours of shut-eye a night, investigators have long been puzzled about what controls the actual need for sleep. Researchers at the University of Pennsylvania School of Medicine might have an answer, at least in fruit flies. In a recent study of fruit flies, they... view more... (2008-07-30)
More evidence mammals, fruit flies share make-up on function of biological clocks
A study by researchers at New York University and the University of London offers additional evidence that mammals and fruit flies share a common genetic makeup that determines the function of their internal biological clocks. The study appears in the latest issue of Current Biology. view more (2006-03-07)
Scientists unravel the molecular basis of monarch butterfly migration
Since its discovery, the annual migration of eastern North American monarch butterfly has captivated the human imagination and spirit. That millions of butterflies annually fly up to 2000 miles to reach a cluster of pine groves in central Mexico comprising just 70 square miles is for many an awesome and mysterious occurrence. view more (2008-01-09)
Rotating shift workers have lower levels of serotonin
People who work rotating shifts have significantly lower levels of serotonin, a hormone and neurotransmitter in the central nervous system believed to play an important role in the regulation of sleep. view more (2007-08-01)
New studies on cancer and schizophrenia, depression and heart disease, trauma and autism
The 2007 American College of Neuropsychopharmacology Annual Meeting will feature hundreds of new studies on brain and behavior from the world's leading scientists. Presentations include innovative research on potential new treatments for depression, post-traumatic stress disorder, autism and addiction. view more (2007-12-11)
Seasonal Affective Disorder May Be Linked to Genetic Mutation, Study Suggests
With the days shortening toward winter, many people will begin to experience the winter blahs. For some, the effect can be devastating. view more (2008-11-04)
Shorter ambulance response times would cut heart attack deaths
Reducing ambulance response times to 5 minutes could almost double the survival rate for cardiac arrests not witnessed by ambulance crews, finds a study in this week's BMJ. All out of hospital cardiopulmonary arrests due to cardiac disease attended by the Scottish Ambulance Service during May 1991 to March 1998 were analysed to determine the... view more... (2001-06-06)
A resetting signal keeps circadian rhythm on track in Drosophila fruit flies
A Brandeis University study published this week in Nature shows for the first time that a molecular signal maintains coherence among brain clock cells that regulate daily activity of Drosophila melanogaster (fruit flies). view more (2005-11-10)
The old, cheap antidepressant drugs may be more effective than the newer ones
Carlo Faravelli and collegues at the University of Florence published a study in Psychotherapy and Psychosomatics thet the Big Pharma would have never funded. 114 of 2,000 outpatients drawn from a private facility with a diagnosis of mood or anxiety disorder had two separate episodes during which they were treated once with a SSRI and once with a... view more... (2003-03-11)
Gene that makes people 'early to bed and early to rise' demystified
The recent discovery that a mutant "clock" gene made some people "early to bed and early to rise," a condition known as familial advanced sleep phase syndrome (FASPS), offered one of the first glimpses into the genetic basis of sleep in humans. view more (2007-01-12)
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