Answer:
5. NREM
8. 9 to 9 1/2 hours
9. ninety minutes to two hours.
Explanation: Hopes this help
Answer:
heath condition, eating habits, body temperature, and gender can also affect a heart rate.
you should consider how much and what type of exercises to do. And you should make sure to stretch before each excerise session.
<span>neurotransmitter and brain stem
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