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question 18

Multiple Choice

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Definitions:

Human Sleep Cycle

The progression through various stages of non-REM and REM sleep that repeats cyclically over a night's sleep.

Deep Sleep

A stage of sleep characterized by slow brain waves, associated with physical and mental restoration.

60-Year-Olds

Individuals who have reached the age of sixty, often entering a phase of life characterized by both challenges and opportunities for growth.

Pituitary Gland

A pea-sized gland located at the base of the brain involved in regulating vital bodily functions and general wellbeing through the secretion of hormones.