Questions and Answers
During which stage of sleep do deep, slow brain waves known as delta waves begin to emerge?
NREM stage 3
What happens to the body during NREM stage 3 sleep?
The muscles are completely relaxed
When does REM sleep typically begin after falling asleep?
60-90 minutes after falling asleep
What is the purpose of REM sleep according to the text?
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What is the recommended amount of sleep for individuals aged 18-64 according to the National Sleep Foundation?
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According to the Repair and Restoring Theory of sleep, what is the purpose of sleep?
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What are the characteristics of NREM stage 1 (light sleep)?
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How much of our lives do we spend sleeping?
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What is the purpose of deep sleep according to the text?
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How long does NREM stage 1 (light sleep) typically last?
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