Sleep: Understanding the Basics Topic Guide
Sleep: Understanding the Basics: Sleep is defined as a state of unconsciousness from which a person can be aroused. In this state, the brain is relatively more responsive to internal stimuli than external stimuli.
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Sleep FAQs Doctors still haven't figured out why we do it, but we all need it, that's for sure! Get answers to your frequently asked questions (FAQs) on sleep and sleep hygiene.
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