BIOLOGICAL BASES OF BEHAVIOR
BIOLOGY OF CONSCIOUSNESS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There are ____ stages of sleep.
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1
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2
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3
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4
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Explanation:
Detailed explanation-1: -Sleep occurs in five stages: wake, N1, N2, N3, and REM.
Detailed explanation-2: -Stages 3 and 4, Slow-Wave Sleep Sleep stages 3 and 4 are collectively referred to as slow-wave sleep (SWS), most of which occurs during the first third of the night. Each has distinguishing characteristics. Stage 3 lasts only a few minutes and constitutes about 3 to 8 percent of sleep.
Detailed explanation-3: -Stage 5: Non-REM Sleep Stage five is the final stage of sleep where we begin to dream, and it occurs about 90 minutes into the sleep cycle. The eyes move rapidly, breathing becomes shallow and rapid, and blood pressure and heart rate increase.
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