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.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with sleep
Not all parents place their babies 'back to sleep,' research finds
12 hours ago |
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Placing infants on their backs for sleep can help reduce the risk of Sudden Infant Death Syndrome (SIDS). But a study by Yale School of Medicine researchers and their colleagues shows that while the practice helped reduce ...
Urine test for pediatric obstructive sleep apnea possible
Dec 07, 2009 |
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Researchers at the University of Chicago have discovered a technique that is able to determine whether a child has obstructive sleep apnea (OSA) or habitual snoring by screening their urine.
Weight loss reduces sleep problems in obese men
Dec 04, 2009 |
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Weight loss reduces obstructive sleep apnoea in obese men, with the greatest effect seen in patients with severe disease, according to new research published in the British Medical Journal today.
Ecstasy may be linked to sleep apnea
Medicine & Health / Neuroscience
Dec 02, 2009 |
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New research shows that recreational users of the drug known as ecstasy may be at a higher risk for sleep apnea. The study is published in the December 2, 2009, online issue of Neurology.
Waking up memories while you sleep
Medicine & Health / Neuroscience
Nov 19, 2009 |
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They were in a deep sleep, yet sounds, such as a teakettle whistle and a cat's meow, somehow penetrated their slumber. The 25 sounds presented during the nap were reminders of earlier spatial learning, though the Northwestern ...
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 ...
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.
Dreams may have an important physiological function
Medicine & Health / Neuroscience
Nov 12, 2009 |
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(PhysOrg.com) -- Dreams have long been assumed to have psychological functions such as consolidating emotional memories and processing experiences or problems, but according to a Harvard psychiatrist and 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 ...
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 ...
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 ...
Elephant seals take naps while diving
Nov 13, 2009 |
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(PhysOrg.com) -- A new study may have solved the long-standing question of how elephants sleep during their long migrations at sea, when they can be away from land for up to eight months.
A mobile phone or an MP3 player tells if you're sleeping soundly
Nov 19, 2009 |
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Finnish researcher Väinö Virtanen has developed a method for analysing snoring sounds by using a PC with a microphone connection and a wireless microphone. The objective was to create an application that could be used ...
Research: Baby's sleep position is major factor in 'flat-headedness'
Nov 19, 2009 |
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(PhysOrg.com) -- A baby's sleep position is the best predictor of a misshapen skull condition known as deformational plagiocephaly ? or the development of flat spots on an infant's head -- according to findings reported by ...
Night beat, overtime and a disrupted sleep pattern can harm officers' health
Nov 17, 2009 |
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A police officer who works the night shift, typically from 8 p.m. to 4 a.m., already is at a disadvantage when it comes to getting a good "night's" sleep.
