Which sleep stage is associated with a regular respiratory rate?

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Multiple Choice

Which sleep stage is associated with a regular respiratory rate?

Regular respiratory rate is most characteristic of non-REM sleep. In this stage, breathing tends to be steady and slow as autonomic regulation stabilizes and metabolic demands are reduced, creating a regular rhythm. REM sleep, by contrast, shows more variable and irregular breathing due to fluctuations in autonomic tone and the muscle atonia that accompanies this stage, which can disrupt a steady rhythm. Wake also tends to have more variable breathing with responses to arousal and activity. So the stage with a regular respiratory rate is non-REM sleep.

Regular respiratory rate is most characteristic of non-REM sleep. In this stage, breathing tends to be steady and slow as autonomic regulation stabilizes and metabolic demands are reduced, creating a regular rhythm. REM sleep, by contrast, shows more variable and irregular breathing due to fluctuations in autonomic tone and the muscle atonia that accompanies this stage, which can disrupt a steady rhythm. Wake also tends to have more variable breathing with responses to arousal and activity. So the stage with a regular respiratory rate is non-REM sleep.

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