English-Chinese/REM sleep, also known as paradoxical sleep, represents a smaller portion of total sleep time

REM sleep, also known as paradoxical sleep, represents a smaller portion of total sleep time. It is the main occasion for dreams (or nightmares), and is associated with desynchronized and fast brain waves, eye movements, loss of muscle tone, and suspension of homeostasis.

REM睡眠，也称为反常睡眠，占总睡眠时间的较小部分. 它是梦想（或梦魇）的主要场合，与失去同步和快速的脑电波，眼球运动，肌肉张力丧失和体内平衡暂停有关.