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During which stage of sleep, also known as delta sleep, would a person have slow breathing and be difficult to wake?

A. Between stages 1 and 2 of non-rapid-eye-movement sleep
B. In stage 4 of non-rapid-eye-movement sleep
C. Near the end of stage 3 of rapid-eye-movement sleep
D. In stage 3 of non-rapid-eye-movement sleep



Answer :

GinnyAnswer

Final answer:

Stage 3 of non-rapid-eye-movement sleep is the deep sleep phase characterized by slow breathing and difficulty to wake, driven by delta waves and essential for body restoration.


Explanation:

Stage 3 of non-rapid-eye-movement sleep, also known as slow-wave sleep or delta sleep, is when a person would have slow breathing and be difficult to wake. This stage is characterized by low-frequency, high-amplitude delta waves, dramatically slowed heart rate and respiration. It is crucial for restorative functions like muscle repair, growth, and immune function.


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