New research reveals the importance of a circadian body clock that matches the r...
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Mice with deviant internal rhythms due to a genetic mutation have fewer offspring and shorter life spans than normal conspecifics whose rhythms follow the 24hr cycle of a day more accurately. This discovery was made by a team of scientists led by researchers from the Max Planck Institute for Ornithology and Princeton University. Almost all living things possess internal clocks that govern periods of sleep and waking, and ensure these processes are in synchrony with night and day. This circadian clock evolved to allow the anticipation of regular daily events. Sunlight aligns the internal clock with the 24-hr-rhythm of the rotation of the earth.
Mutations ...
Read MoreExamination of thousands of genes from nearly 150 human brains shows the circadian rhythm of gene activity changes with aging, according to a first-of-its-kind study conducted by researchers at the University of Pittsburgh School of Medicine. It suggest also that a novel biological clock begins ticking only in the older brain.
A 24hr circadian rhythm controls nearly all brain and body processes, such as the sleep/wake cycle, metabolism, alertness and cognition. These daily activity patterns are regulated by certain genes that are found in almost all cells, but have rarely been studied in the human brain. “Studies have reported that older adults tend to perform complex cognitive tasks better in the morning and get worse through the day,” Dr. McClung said...
Read MoreA new molecular mechanism for DNA repair involving an unexpected interaction between PARP-1 protein and sleep proteins in humans has been found. While it is a well-known fact that sleep is important to the body’s recovery and healing, knowledge of the molecular mechanisms that make this possible is incomplete...
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