http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Melatonin, a natural hormone segregated by the own human body, is an excellent sleep regulator expected to replace somniferous, which are much more aggressive, to correct the sleep/wakefulness pace when human biological clock becomes altered. http://www.physorg.com/news176645582.html Medicine & Health Thu, 05 Nov 2009 12:18:56 EST news176645582 Our body's activity levels fall and rise to the beat of our internal drums -the 24-hour cycles that govern fundamental physiological functions, from sleeping and feeding patterns to the energy available to our cells. Whereas the master clock in the brain is set by light, the pacemakers in peripheral organs are set by food availability. The underlying molecular mechanism was unknown. http://www.physorg.com/news174834182.html Medicine & Health Thu, 15 Oct 2009 14:04:23 EST news174834182 (PhysOrg.com) -- University of Michigan mathematicians and their British colleagues say they have identified the signal that the brain sends to the rest of the body to control biological rhythms, a finding that overturns a long-held theory about our internal clock. http://www.physorg.com/news174228584.html Medicine & Health Thu, 08 Oct 2009 14:00:03 EST news174228584 Scientists have long struggled to understand the body's biological clock. Its tick-tock wakes us up, reminds us to eat and tells us when to go to bed. But what sets that circadian rhythm? http://www.physorg.com/news173975219.html Medicine & Health Mon, 05 Oct 2009 15:38:32 EST news173975219 A University of Utah sleep expert has joined with researchers at the University of California, San Francisco (UCSF), and Stanford University to identify a genetic variation in humans, which the scientists also developed in mouse models, that allows a rare number of people to require less sleep than others. http://www.physorg.com/news172331361.html Medicine & Health Wed, 16 Sep 2009 14:50:19 EST news172331361 Alexis Webb enters a small room at Washington University in St. Louis with walls, floor and ceiling painted dark green, shuts the door, turns off the lights and bends over a microscope in a black box draped with black cloth. Through the microscope, she can see a single nerve cell on a glass cover slip glowing dimly. http://www.physorg.com/news171728740.html Biology Wed, 09 Sep 2009 15:27:33 EST news171728740 A study in the Sept.1 issue of the journal Sleep shows that the sleep-wake activity rhythms of breast cancer patients are impaired during the administration of chemotherapy. Results indicate that the first cycle of chemotherapy is associated with a temporary disruption of these rhythms, while repeated administration of chemotherapy results in progressively worse and more enduring impairments. http://www.physorg.com/news171007271.html Medicine & Health Tue, 01 Sep 2009 07:30:02 EST news171007271 Chronic alcohol consumption blunts the biological clock's ability to synchronize daily activities to light, disrupts natural activity patterns and continues to affect the body's clock (circadian rhythm), even days after the drinking ends, according to a new study with hamsters. http://www.physorg.com/news171006931.html Medicine & Health Tue, 01 Sep 2009 06:55:57 EST news171006931 Dartmouth Medical School geneticists have made new inroads into understanding the regulatory circuitry of the biological clock that synchronizes the ebb and flow of daily activities, according to two studies published May 15. http://www.physorg.com/news161607782.html Biology Fri, 15 May 2009 12:03:37 EST news161607782 (AP) -- People with Type 2 diabetes may soon get a very different treatment approach: A drug that helps control blood sugar via the brain - an idea sparked, surprisingly, by the metabolism of migrating birds. http://www.physorg.com/news160843146.html Medicine & Health Wed, 06 May 2009 15:39:44 EST news160843146 (PhysOrg.com) -- Scientists from Queen Mary, University of London have discovered a new protein complex operating in fruit fly circadian clocks, which may also help to regulate our own biological clocks. http://www.physorg.com/news160215248.html Biology Wed, 29 Apr 2009 09:14:51 EST news160215248 Jet lag is the bane of many travelers, and similar fatigue can plague people who work in rotating shifts. Scientists know the problem results from disruption to the body's normal rhythms and are getting closer to a better understanding that might lead to more effective treatment. http://www.physorg.com/news159106695.html Medicine & Health Thu, 16 Apr 2009 13:18:41 EST news159106695 (PhysOrg.com) -- Biologists at the University of California, San Diego have identified a key protein that links the morning and evening components of the daily biological clock of plants. http://www.physorg.com/news156087384.html Biology Thu, 12 Mar 2009 14:36:57 EST news156087384 Children of older fathers perform less well in a range of cognitive tests during infancy and early childhood, according to a study published this week in the open-access journal PLoS Medicine. In contrast, the study finds that children with older mothers gain higher scores in the same tests - designed to measure the ability to think and reason, including concentration, learning, memory, speaking and reading skills. http://www.physorg.com/news155813766.html Medicine & Health Mon, 09 Mar 2009 10:36:42 EST news155813766 (PhysOrg.com) -- Harvard researchers from Brigham and Women`s Hospital (BWH) and colleagues have identified the potential cause of the increased risk for cardiovascular and metabolic disease in shift workers. http://www.physorg.com/news155316624.html Medicine & Health Tue, 03 Mar 2009 15:31:32 EST news155316624 Like kids taking apart a fine Swiss watch, scientists are laboring to understand what makes the biological clock that's inside every living creature tick. http://www.physorg.com/news153300166.html Biology Sun, 08 Feb 2009 07:23:32 EST news153300166 Your mother's wrinkles - or lack there of, may not be the best predictor of how you'll age. In fact, a new study claims just the opposite. The study, involving identical twins, suggests that despite genetic make-up, certain environmental factors can add years to a person's perceived age. Results just published on the web-based version of Plastic and Reconstructive Surgery, the official medical journal of the American Society of Plastic Surgeons (ASPS), reveal that factors like divorce or the use of antidepressants are the real culprits that can wreak havoc on one's face. http://www.physorg.com/news152884242.html Medicine & Health Tue, 03 Feb 2009 11:51:13 EST news152884242 Indulgence in a high-fat diet can not only lead to overweight because of excessive calorie intake, but also can affect the balance of circadian rhythms - everyone's 24-hour biological clock, Hebrew University of Jerusalem researchers have shown. http://www.physorg.com/news149769761.html Medicine & Health Mon, 29 Dec 2008 10:42:41 EST news149769761 The tick-tock of your biological clock may have just gotten a little louder. Researchers at the University of Georgia report that the number of genes under control of in living things than suspected only a few years ago. The biological clock in a much-studied model organism is dramatically higher than previously reported. The new study implies that the clock may be much more important. http://www.physorg.com/news139226726.html Biology Fri, 29 Aug 2008 11:05:26 EST news139226726