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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)

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)

Scientist brings 50 million year old spider 'back to life'
A 50-million-year-old fossilised spider has been brought back to life in stunning 3D by a scientist at The University of Manchester.   view more (2007-10-30)

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)

Sleeping sickness parasite shows how cells divide their insides
Graham Warren, professor of cell biology, and his colleagues at Yale study Trypanosoma brucei, the parasite that causes Sleeping Sickness.   view more (2005-11-08)

No cell walls, no new cancer cells
Cancer cells, like houses, need building materials for their walls. And as with a house, the cell wall needs to be built at just the right moment to protect and allow the construction of internal components.   view more (2006-08-02)

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)

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)

Zeroing in on progeria: How mutant lamins cause premature aging
Children diagnosed with Hutchinson-Gilford Progeria Syndrome (HGPS) race through life against an unfairly fast clock. Cases are extremely rare-one in 8 million births-but time plays cruel tricks on HGPS newborns.   view more (2005-12-14)

Towards the mechanism of cell respiration
Researchers at the Institute of Biotechnology of the University of Helsinki have for the first time identified an internal electron transfer reaction that initiates the proton pump mechanism of the respiratory enzyme.   view more (2006-04-06)

How long is a day on Saturn?
Measuring the rotation period of a rocky planet like the Earth is easy, but similar measurements for planets made of gas, such as Saturn, pose problems.   view more (2006-05-04)

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)

'Tornadoes' are transferred from light to sodium atoms
For the first time, tornado-like rotational motions have been transferred from light to atoms in a controlled way at the National Institute of Standards and Technology (NIST).   view more (2006-11-10)

University of Iowa scientists explore function of 'junk DNA'
University of Iowa scientists have made a discovery that broadens understanding of a rapidly developing area of biology known as functional genomics and sheds more light on the mysterious, so-called "junk DNA" that makes up the majority of the human genome.   view more (2006-11-14)
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