According to Wikipedia, 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. However, in a subset of cases deprivation can, paradoxically, lead to increased energy and alertness and enhanced mood; it has even been used as a treatment for depression (see below).
Few studies have compared the effects of acute total deprivation and chronic partial restriction. Complete absence of sleep over long periods has not been seen in humans (unless they suffer from fatal familial insomnia); it appears that brief microsleeps cannot be avoided. Long-term total sleep deprivation has caused death in lab animals.
When there’s too much to do and not nearly enough time to do it, sleep is often the first thing we give up. Some coffee in the morning and a little nap will get us through it, right?
Adequate amounts of rest are more essential to your health and wellbeing than you might think. Too little can lead to problems learning, seeing, and even controlling your moods.
Check out the infographic from Business Insider below to learn more ways your mind and body can suffer when you don’t get enough.