Most Viewed Circadian Clock Current Events | Circadian Clock News
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Light-induced hormone surge points to benefits of light therapy
A report in the November Cell Metabolism reveals powerful effects of light on the adrenal glands, a finding that might explain the broad benefits of bright light therapy for a variety of conditions, including sleep and depressive disorders, according to researchers. view more (2005-11-09)
Why the Amazon rainforest is so rich in species
Tropical areas of south and central America such as the Amazon rainforest are home to some 7500 species of butterfly compared with only around 65 species in Britain. view more (2005-12-06)
Daytime light exposure dynamically enhances brain responses
Exposure to light is known to enhance both alertness and performance in humans, but little is understood regarding the neurological basis for these effects, especially those associated with daytime light exposure. view more (2006-08-22)
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)
Evolution study tightens human-chimp connection
Scientists at the Georgia Institute of Technology have found genetic evidence that seems to support a controversial hypothesis that humans and chimpanzees may be more closely related to each other than chimps are to the other two species of great apes - gorillas and orangutans. view more (2006-01-24)
Doomsday clock moves forward 2 minutes
The Bulletin of the Atomic Scientists (BAS) is moving the minute hand of the Doomsday Clock today from seven to five minutes to midnight. view more (2007-01-18)
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)
Mood Lighting: Penn Researchers Determine Role of Serotonin in Modulating Circadian Rhythm
Researchers at the University of Pennsylvania School of Medicine have determined how serotonin decreases the body's sensitivity to light and that exposure to constant darkness leads to a decrease in serotonin levels in the brain of fruit flies. view more (2005-07-11)
Feeling sleepy is all in your genes
Genes responsible for our 24 hour body clock influence not only the timing of sleep, but also appear to be central to the actual restorative process of sleep, according to research published in the online open access journal BMC Neuroscience. view more (2007-10-18)
Multitasking is hardest in the early morning
Multitasking seems to come easier for some and is virtually impossible for others, however new research shows that it is difficult for all in the late night and early morning. view more (2007-05-07)
The hormone of darkness: melatonin could hurt memory formation at night
What do you do when a naturally occurring hormone in your body turns against you? What do you do when that same hormone - melatonin - is a popular supplement you take to help you sleep? A University of Houston professor and his team of researchers may have some answers. view more (2007-11-16)
Scientists narrow the time limits for the human and chimpanzee split
A team of researchers has proposed new limits on the time when the most recent common ancestor of humans and their closest ape relatives - the chimpanzees - lived. view more (2005-12-20)
Clock molecule's sensitivity to lithium sheds light on bipolar disorder
Researchers at the University of Pennsylvania School of Medicine discovered that a key receptor protein is a critical component of the internal molecular clock in mammals. What's more, this molecule -called Rev-erb- is sensitive to lithium and may help shed light on circadian rhythm disorders, including bipolar disorder. view more (2006-02-17)
New micro instrument controls medicine flows
Research scientists at the Micro and Nanotechnology Laboratory in Oslo have developed a flow metre with fluid channels thinner than a strand of hair. The new device controls that patients receive the correct dosage of medicine. view more (2004-11-03)
Forgetting the future? Prospective memory impairments in ecstasy users
New research presented today, Wednesday 28 March, at The British Psychological Society’s Centenary Annual Conference, held at the Scottish Exhibition and Conference Centre, Glasgow, now shows that ecstasy use can lead to impairments in ‘prospective memory’. This is the part of memory to do with remembering things ones has to do... view more... (2001-03-26)
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)
Artificial light at night stimulates breast cancer growth in laboratory mice
Results from a new study in laboratory mice show that nighttime exposure to artificial light stimulated the growth of human breast tumors by suppressing the levels of a key hormone called melatonin. view more (2005-12-20)
Early to bed, early to rise
In an upcoming G&D paper, a team of German scientists presents a genetic basis for understanding human morning lark behavior. Dr. Achim Kramer (Charité Universitaetsmedizin Berlin) and colleagues have uncovered a genetic cause for the human familial advanced sleep phase syndrome (FASPS), which causes people to both go to sleep and wake up... view more... (2006-09-20)
New telomere discovery could help explain why cancer cells never stop dividing
A group working at the Swiss Institute for Experimental Cancer Research (ISREC) in collaboration with the University of Pavia has discovered that telomeres, the repeated DNA-protein complexes at the end of chromosomes that progressively shorten every time a cell divides, also contain RNA. view more (2007-10-05)
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)
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