REM sleep has been called "paradoxical sleep" because:
A) the brain is very active, yet the body is entirely inactive.
B) the body is very active and restless, but the brain is very inactive.
C) the eyes are open, though the person remains asleep.
D) colorful dreams occur, in contrast to the black-and-white dreams of NREM sleep.

Question

Quizplus · Accepted Answer

REM sleep is called paradoxical sleep because the brain is highly active, almost as much as when we're awake, but the body is completely still and inactive. This is in contrast to NREM sleep, where the brain is less active but the body can still move and be restless.

REM Sleep Has Been Called "Paradoxical Sleep" Because