Sleep Deprivation

Deep sleep puts the 'REM' in remembering

When it comes to mental health and cognitive function, the importance of rapid eye-movement sleep - that deep, restorative stage of sleep that we cycle in and out of throughout the night - is so well established that experiments ...

May 13, 2016
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Smartphones uncover how the world sleeps

A pioneering study of worldwide sleep patterns combines math modeling, mobile apps and big data to parse the roles society and biology each play in setting sleep schedules.

May 06, 2016
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Hypoglycemia, sleep loss prolong cognitive impairment

(HealthDay)—Sleep deprivation does not exacerbate cognitive impairment induced by hypoglycemia, but the post-hypoglycemia recovery takes longer with persistence of both cognitive dysfunction and hypoglycemia symptoms, according ...

Apr 05, 2016
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Sleep loss boosts hunger and unhealthy food choices

Skimping on sleep has long been associated with overeating, poor food choices and weight gain. Now a new study shows how sleep loss initiates this process, amplifying and extending blood levels of a chemical signal that enhances ...

Feb 29, 2016
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Sleep loss detrimental to blood vessels

Lack of sleep has previously been found to impact the activation of the immune system, inflammation, carbohydrate metabolism and the hormones that regulate appetite. Now University of Helsinki researchers have found that ...

Apr 22, 2016
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Sleep and weight gain

You probably know this ritual: the kids are in bed, the television is on, and you reach for the chips or the ice cream. Before long, it's 1 a.m., and you are dreading your alarm clock in the morning as you guiltily pick up ...

Mar 08, 2016
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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.

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