From early adulthood to midlife, what happens to REM sleep?

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Multiple Choice

From early adulthood to midlife, what happens to REM sleep?

REM sleep remains largely stable in duration and proportion from early adulthood through midlife. While other parts of sleep architecture shift with age—deep (N3) sleep tends to decline and awakenings can increase—the amount of REM sleep does not show a meaningful decrease in this age range. It typically makes up about a quarter of total sleep in healthy adults, and this level is preserved from young adulthood into midlife for most people. So, the best statement is that REM sleep shows no significant decrease during this period. The alternatives imply increases, substantial declines, or disappearance, which don’t align with how REM sleep typically changes in early to midlife.

REM sleep remains largely stable in duration and proportion from early adulthood through midlife. While other parts of sleep architecture shift with age—deep (N3) sleep tends to decline and awakenings can increase—the amount of REM sleep does not show a meaningful decrease in this age range. It typically makes up about a quarter of total sleep in healthy adults, and this level is preserved from young adulthood into midlife for most people.

So, the best statement is that REM sleep shows no significant decrease during this period. The alternatives imply increases, substantial declines, or disappearance, which don’t align with how REM sleep typically changes in early to midlife.

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