Reference Terms
from Wikipedia, the free encyclopedia

Sleep deprivation

Sleep deprivation is an overall lack of the necessary amount of sleep.

A person can be deprived of sleep by their own body and mind, insomnia, or actively deprived by another individual.

Sleep deprivation afflicts 47 million adults in the United States.

Note:   The above text is excerpted from the Wikipedia article "Sleep deprivation", which has been released under the GNU Free Documentation License.
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July 28, 2015

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updated 12:56 pm ET