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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20%
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50%
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80%
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90%
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Detailed explanation-1: -NREM sleep constitutes about 75 to 80 percent of total time spent in sleep, and REM sleep constitutes the remaining 20 to 25 percent. The average length of the first NREM-REM sleep cycle is 70 to 100 minutes.
Detailed explanation-2: -Dreams typically happen during REM sleep. There are several stages to a good night’s rest.
Detailed explanation-3: -Stage 2 sleep can last for 10 to 25 minutes during the first sleep cycle, and each N2 stage can become longer during the night. Collectively, a person typically spends about half their sleep time in N2 sleep.
Detailed explanation-4: -“If you go too much over 25 percent of REM, it might cause too much brain activation, which can leave you angry and irritable and can even potentially exacerbate depression and anxiety symptoms, ” says Grandner.