Sleep Deprivation

Expert explores how sunlight may affect ADHD patients

Researchers are interested in exploring how sunlight, sleep and screens (like those on computers and TVs) may affect those with attention-deficit/hyperactivity disorder (ADHD), says Dr. L. Eugene Arnold, a child psychiatrist ...

Attention deficit disorders created May 17, 2013 | popularity 5 / 5 (3) | comments 1

Unusual comparison nets new sleep loss marker

(Medical Xpress)—For years, Paul Shaw, PhD, a researcher at Washington University School of Medicine in St. Louis, has used what he learns in fruit flies to look for markers of sleep loss in humans.

Medical research created May 03, 2013 | popularity not rated yet | comments 1 | with audio podcast

Nursing professor claims teens are "sleep texting"

Nursing professor Elizabeth Dowdell, of Villanova University has reported in an interview with a CBS news affiliate in Philadelphia, that she has discovered a new phenomena she calls "sleep texting." She says it's just like ...

Health created Feb 18, 2013 | popularity 2.9 / 5 (7) | comments 4 | with audio podcast weblog

Sleep preserves and enhances unpleasant emotional memories

A recent study by sleep researchers at the University of Massachusetts Amherst is the first to suggest that a person's emotional response after witnessing an unsettling picture or traumatic event is greatly ...

Psychology & Psychiatry created Jan 17, 2012 | popularity 4.4 / 5 (15) | comments 1 | with audio podcast

Interrupted sleep impairs memory in mice

With the novel use of a technique that uses light to control brain cells, Stanford University researchers have shown that fragmented sleep causes memory impairment in mice.

Sleep apnea created Jul 25, 2011 | popularity not rated yet | comments 1 | with audio podcast

Losing sleep? Scientists evaluate why

The issue of sleep deprivation has gone beyond the counting of sheep and into the scientific domain, as European researchers set up 'sleep labs' to study the biomedical and sociological factors keeping us ...

Health created May 03, 2013 | popularity 5 / 5 (3) | comments 0

Sleep deprivation may disrupt your genes, study says

(HealthDay)—Far more than just leaving you yawning, a small amount of sleep deprivation disrupts the activity of genes, potentially affecting metabolism and other functions in the human body, a new study ...

Medical research created Feb 25, 2013 | popularity 4.3 / 5 (9) | comments 1 | with audio podcast

Let crying babes lie: Study supports notion of leaving infants to cry themselves back to sleep

Today, mothers of newborns find themselves confronting a common dilemma: Should they let their babies "cry it out" when they wake up at night? Or should they rush to comfort their crying little one?

Psychology & Psychiatry created Jan 02, 2013 | popularity 2.3 / 5 (13) | comments 13 | with audio podcast

Sleep problems may be early sign of Alzheimer's

Sleep disruptions may be among the earliest indicators of Alzheimer's disease, scientists at Washington University School of Medicine in St. Louis report Sept. 5 in Science Translational Medicine.

Alzheimer's disease & dementia created Sep 05, 2012 | popularity 5 / 5 (4) | comments 0 | with audio podcast

New study shows that even your fat cells need sleep

In a study that challenges the long-held notion that the primary function of sleep is to give rest to the brain, researchers have found that not getting enough shut-eye has a harmful impact on fat cells, reducing by 30 percent ...

Medical research created Oct 15, 2012 | popularity 5 / 5 (7) | comments 0 | with audio podcast

Do white LEDs disrupt our biological clocks?

You come into contact every day with light-emitting diodes (LEDs) -- they illuminate alarm clocks, new televisions, traffic lights, and smartphone displays. Increasingly, you will see white-light versions ...

Health created Oct 17, 2011 | popularity 4.5 / 5 (8) | comments 6 | with audio podcast

Social jetlag is a real health hazard

Social jetlag -- a syndrome related to the mismatch between the body's internal clock and the realities of our daily schedules -- does more than make us sleepy. It is also contributing to the growing tide of obesity, according ...

Medical research created May 10, 2012 | popularity 2.5 / 5 (2) | comments 0 | with audio podcast

Night shift might boost women's breast cancer risk: study

(HealthDay) -- Women who work the night shift more than twice a week might be increasing their risk for breast cancer, Danish researchers find.

Health created May 29, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Sleep affects potency of vaccines

As moms have always known, a good night's sleep is crucial to good health -- and now a new study led by a UCSF researcher shows that poor sleep can reduce the effectiveness of vaccines.

Immunology created Aug 01, 2012 | popularity not rated yet | comments 0 | with audio podcast

Protected 'power naps' prove helpful for doctors in training to fight fatigue

New research from the Perelman School of Medicine at the University of Pennsylvania and the Philadelphia VA Medical Center indicates that the implementation of protected sleep periods for residents who are assigned to overnight ...

Health created Dec 04, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast


Sleep deprivation is the condition of not having enough sleep; it can be either chronic or acute. A chronic sleep-restricted state can cause fatigue, daytime sleepiness, clumsiness and weight loss or weight gain. It adversely affects the brain and cognitive function. Few studies have compared the effects of acute total sleep deprivation and chronic partial sleep restriction. Complete absence of sleep over long periods is impossible for humans to achieve (unless they suffer from fatal familial insomnia); brief microsleeps cannot be avoided. Long-term total sleep deprivation has caused death in lab animals.

This text uses material from Wikipedia and is available under the GNU Free Documentation License.

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