In the elderly,which stages of sleep become sparse or non-existent?
A)Stages 1,2 and REM.
B)Stages 1,4 and REM.
C)Stages 3,4 and REM.
D)Stage 4 and REM.

Name: In the elderly,which stages of sleep become sparse or non-existent? A)Stages 1,2 and REM. B)Stages 1,4 and REM. C)Stages 3,4 and REM. D)Stage 4 and REM.
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Question

Quizplus · Accepted Answer

In the elderly, deep sleep (Stage 4) and REM sleep become sparse or non-existent. This is due to changes in the brain and sleep architecture that occur with aging.

In the Elderly,which Stages of Sleep Become Sparse or Non-Existent