At what sleep stage does your breathing become more regular and your awareness of external stimulation decrease?
A) REM
B) stage 4
C) stage 3
D) stage 2

Question

Quizplus · Accepted Answer

In stage 2 sleep, breathing becomes more regular and there is a decrease in the awareness of external stimuli. Stage 2 sleep is also characterized by the presence of sleep spindles and K-complexes. REM (A) is associated with rapid eye movements and dreams, stage 4 (B) is the deepest stage of non-REM sleep, and stage 3 (C) is a transition between stage 2 and stage 4.

At What Sleep Stage Does Your Breathing Become More Regular