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Sleep: Overview

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Sleep is essential for day-to-day functioning, performance, learning, and overall health. Sleep disorders, including insomnia, are a leading cause of accidents, lost productivity, and illness. The NICHD supports many areas of research on sleep, including how the process of sleep occurs, the impact of inadequate sleep on health and behavior, and conditions that disrupt sleep. 

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Last Reviewed: 07/09/2013
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