![]() ![]() ![]() The Functions of Sleepįarmers everywhere know that a field is far more productive when it is allowed to periodically lie fallow to regenerate the fertility of the soil. 4īut sometimes life interferes with our internal biological rhythms and they become slightly out of whack, which can result in either too much sleep or too little. 3 And in much the same way that hunger serves as a safeguard against undernourishment, sleepiness acts as a protective mechanism against inadequate rest. In terms of our overall health, sleep is actually on par with eating it is essential to both physiological and cognitive functioning. Sleep is a natural time for the body and mind to rest, reset, detoxify, and rejuvenate-and sleep is carefully regulated by our bodies. 1 What is clear is that balanced sleep is a staple of optimal health. We spend roughly a third of our lives asleep, and while scientists have been studying the functions of sleep extensively for years, some of our most basic questions about why we sleep have been difficult to answer.
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