Sleep

Sleep is a naturally recurring state characterized by reduced or absent consciousness, relatively suspended sensory activity, and inactivity of nearly all voluntary muscles. It is distinguished from quiet wakefulness by a decreased ability to react to stimuli, and is more easily reversible than being in hibernation or a coma.

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More Sleep May Cut Kids' Risk of Obesity
Youngsters who do not get enough sleep on a regular basis are more likely to be overweight, a new study has found...
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