Sleep
hideSleep is a natural state of bodily rest observed in humans and other animals. It is distinguished from quiet wakefulness by a decreased ability to react to stimuli, and it is more easily reversible than hibernation or coma. It is common to all mammals and birds, and is also seen in many reptiles, amphibians, and fish. In humans, other mammals, and a substantial majority of other animals that have been studied (such as some species of fish, birds, ants, and fruit flies), regular sleep is essential for survival.
The purposes and mechanisms of sleep are only partly clear and are the subject of intense research.
For more information about Sleep, read the full article at
Wikipedia.
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News tagged with sleep
Hyperactivity associated with short sleep-time for young boys: study
Medicine & Health / Psychology & Psychiatry
Nov 27, 2009 |
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(PhysOrg.com) -- Hyperactive boys don't get enough sleep, which can worsen their condition according to new research. Published in the November issue of Pediatrics, the study is the first to examine a larg ...
Sleep changes predict the onset of physical changes associated with puberty
Dec 01, 2009 |
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A study in the Dec.1 issue of the journal Sleep suggests that changes in children's sleep patterns that typically occur between the ages of 11 and 12 years are evident before the physical changes associated with the onset ...
An end to sleep problems? Researchers discover enzyme behind effects of sleep deprivation
Nov 26, 2009 |
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There is hope for those who miss one night too many or whose children keep them up at night. The unwelcome effects of a bad night's sleep - forgetfulness, impaired mental performance - can be dealt with by reducing the concentration ...
Study shows dream-enacting behavior is common in healthy young adults
Dec 01, 2009 |
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A study in the Dec.1 issue of the journal Sleep shows that dream-enacting behaviors are common in healthy young adults, and the prevalence of specific behaviors differs between men and women.
Study shows that adults have dreamlike thoughts during sleepwalking and sleep terrors episodes
Dec 01, 2009 |
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A study in the Dec.1 issue of the journal Sleep shows that short, unpleasant, dreamlike mental activity occurs during sleepwalking and sleep terrors episodes, suggesting that people with these sleep disorders may be acting ...
