AP PSYCHOLOGY

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BIOLOGICAL BASES OF BEHAVIOR

BIOLOGY OF CONSCIOUSNESS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
As Draco is sleeping, we should expect that it will be about how long for him to go through a full sleep cycle?
A
10 minutes
B
30 minutes
C
60 minutes
D
90 minutes
E
120 minutes
Explanation: 

Detailed explanation-1: -A full sleep cycle takes about 90 to 110 minutes. Your first REM period is short. As the night goes on, you’ll have longer REM sleep and less deep sleep.

Detailed explanation-2: -The idea is to align your bedtime to your 90 minute sleep cycles, so you wake after a complete cycle in REM sleep (when we have structured dreams) and thus feel more refreshed.

Detailed explanation-3: -An average sleep cycle lasts about 90 minutes. Ideally, you need four to six cycles of sleep every 24 hours to feel fresh and rested. Each cycle contains four individual stages: three that form non-rapid eye movement (NREM) sleep and one rapid eye movement (REM) sleep.

Detailed explanation-4: -Sleep cycles are around 90 minutes and we tend to go through around five a night.

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