REM sleep is called paradoxical sleep because
A) our heart rate is slow and steady,while our breathing is highly irregular.
B) we are deeply asleep but can be awakened easily.
C) our nervous system is highly active,while our voluntary muscles hardly move.
D) it leads to highly imaginative dreams that are perceived as colorless images.

Question

Quizplus · Accepted Answer

During REM sleep, our brain waves are similar to when we are awake and highly active, but our voluntary muscles are mostly paralyzed, which creates a paradoxical state of highly active and highly still at the same time.

REM Sleep Is Called Paradoxical Sleep Because