Neuroscience

A sleep-deprived brain interprets impressions negatively

A sleepless night not only leaves us fatigued and distracted, it also makes us interpret things more negatively and makes us more likely to lose our temper. Moreover, people suffering from a pollen allergy are at a high risk ...

Health

How much sleep do teenagers really need?

Parents worry about whether their teenagers are getting enough sleep. Research studies suggest that teenagers are suffering an "epidemic of sleep deprivation" globally —one that will have long-term health impacts.

Neuroscience

Not all sleep is equal when it comes to cleaning the brain

New research shows how the depth of sleep can impact our brain's ability to efficiently wash away waste and toxic proteins. Because sleep often becomes increasingly lighter and more disrupted as we become older, the study ...

Medical research

How chronic pain threatens a good night's sleep

Ask anyone who is in pain how their much-needed sleep was, and there's a good chance they will say it was not great. And, it appears they may not be too far off as chronic pain and poor sleep can become a vicious cycle, according ...

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Sleep deprivation

Sleep deprivation, having too little sleep, can be either chronic or acute. Long-term sleep deprivation causes death in lab animals. A chronic sleep-restricted state can cause fatigue, daytime sleepiness, clumsiness and weight gain.

Complete absence of sleep over long periods is impossible to achieve; brief microsleeps cannot be avoided.

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