Respiratory rate in NREM sleep is

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Multiple Choice

Respiratory rate in NREM sleep is

In non-REM sleep, the brainstem control of breathing operates with a steady, rhythmic pattern. Autonomic activity is more stable and there are fewer phasic fluctuations, so the respiratory pattern becomes regular and predictable. The overall drive to breathe is somewhat reduced compared with wakefulness, so the rate is typically slower, but it remains uniform rather than variable. REM sleep, by contrast, involves fluctuating autonomic tone and muscle atonia that make breathing irregular. Increased rate isn’t characteristic of NREM, and focusing on regularity best matches how breathing behaves in this sleep stage.

In non-REM sleep, the brainstem control of breathing operates with a steady, rhythmic pattern. Autonomic activity is more stable and there are fewer phasic fluctuations, so the respiratory pattern becomes regular and predictable. The overall drive to breathe is somewhat reduced compared with wakefulness, so the rate is typically slower, but it remains uniform rather than variable. REM sleep, by contrast, involves fluctuating autonomic tone and muscle atonia that make breathing irregular. Increased rate isn’t characteristic of NREM, and focusing on regularity best matches how breathing behaves in this sleep stage.

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