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The nurse is teaching a client about sleep and gives background information on normal sleep patterns. Which of the following substances promotes sleep?
Correct Answer: A
Explanation/Reference: Explanation: Serotonin is a substance that is in the body and promotes sleep. Serotonin might play a role in synthesis of a hypnogenic factor that directly causes sleep. Drugs and alcohol can disrupt REM sleep, although they might accelerate the onset of sleep. Basic Care and Comfort