BIOLOGICAL BASES OF BEHAVIOR
BIOLOGY OF CONSCIOUSNESS
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Detailed explanation-1: -Sleep occurs in five stages: wake, N1, N2, N3, and REM. Stages N1 to N3 are considered non-rapid eye movement (NREM) sleep, with each stage a progressively deeper sleep.
Detailed explanation-2: -Stage 5: REM sleep The final stage of sleep is REM and this is the cycle where we dream. The eyes move rapidly behind the lids and breathing becomes shallow and rapid. Blood pressure and heart rate also increase during REM sleep and the arms and legs are paralyzed so that sleepers can’t act out their dreams.
Detailed explanation-3: -The fifth stage of sleep is called rapid eye movement (REM). The body experiences bursts of rapid eye movements, and brain waves change to those we experience while being awake.
Detailed explanation-4: -Each sleep cycle consists of four stages, with each having varying effects on the body. On average, adults go through 4–6 sleep cycles per night and spend 90 minutes in each sleep cycle stage.