REM sleep is termed 'active' sleep.
快速眼动睡眠称作“主动”睡眠。
During REM sleep, our bodies do not move at all.
在REM睡眠期间，我们的身体一动不动。
We enter REM sleep four to seven times each night.
我们每天晚上会有四到七次进入REM睡眠。
Until recently, most sleep research focused on REM sleep.
直到最近，大多数对于睡眠的研究都关注于快速动眼睡眠[3]。
However for new problems, only REM sleep enhances creativity.
对于解决新的问题，只有快速眼动期的睡眠，才可以提升创意能力。
In the deeper stages of non-REM sleep brain activity is slower.
在非快速眼动睡眠期的更深层阶段，脑活动较慢一点。
When you awaken from REM sleep, you'll feel refreshed and alert.
当你从眼动睡眠中被唤醒的话，你会感觉到神清气爽。
Dreams occur in both rapid-eye movement (REM) sleep, and non-REM sleep.
在快速眼动（REM）睡眠期和非快速眼动睡眠期都会有梦境生成。
People with depression often experience more REM sleep than non-depressed people.
那些情绪沮丧的人通常会经历更多的快速眼动睡眠期。
Doctors think that REM sleep is very important for learning, thinking, and memory.
医生认为快速眼动睡眠对人的学习、思考和记忆非常重要。
REM sleep, however, is the proverbial riddle wrapped in a mystery inside an enigma.
然而REM睡眠，却是众所皆知的包于谜团中的谜中之谜。
Sometimes, the braindoesn't properly signal the body to stay still during REM sleep.
有时，大脑不能恰当地示意身体在快速眼动睡眠过程中保持静止。
If it were 100% correct, our entire day would be replayed to us during our REM sleep!
如果它是100%正确的，那我们经历的一天都将在我们的REM睡眠中被重新播放一遍呀！
REM sleep is a critical driver of brain development, and literally rebuilds the brain.
REM睡眠是大脑发育的关键动力，它甚至能改造大脑。
During REM sleep, our brain's electrical activity mirrors its activity when we're awake.
在快速眼动睡眠期，我们大脑的脑电活动反映了我们醒着时大脑的活动。
This period of rapid eye movement lasts for some 8 to 15 minutes and is called REM sleep.
这种迅速的眼球运动持续约8 ~15分钟，这一阶段睡眠被称之为快速眼动(REM)睡眠。
This research may explain why subjects waking from REM sleep often report vivid dream imagery.
这项研究也许可解释为什么从REM睡眠状态清醒过来的人经常会谈到鲜活的梦境。
During REM sleep, dream activity ramps up and the voluntary muscles ofthe body become immobile.
在快速眼动睡眠期间，梦境增加，身体的随意肌逐渐静止。
In between cycles of REM sleep, we have non-REM sleep, which includes deep or 'slow-wave' sleep.
在快速眼动睡眠周期之间，我们还有非快速眼动睡眠，包括深度睡眠和慢波期睡眠。
They found that some cells in the brain stem produce electrochemical signals only during REM sleep.
他们发现，脑干中的某些细胞只在快速眼动睡眠阶段才产生电化学信号。
Non-REM sleep is when our brain and body slow down. Our heart rate slows and our breathing is regular.
非快速眼动睡眠时，我们的大脑和身体活动减少，心跳变慢，呼吸均匀。
Studies using ultrasound have shown that fetuses exhibit REM sleep as early as the 23rd week of gestation.
研究者通过超声波发现，23周大的胎儿即开始在睡眠时快速移动眼球。
Over time, not having enough sleep—especially deep and REM sleep—can cause one to become sick more easily.
随着时间的推移，睡眠不足会让人更加容易生病，尤其是深度睡眠和快速眼动睡眠时间不足时。
Over time, not having enough sleep—especially deep and REM sleep—can cause one to become sick more easily.
随着时间的推移，睡眠不足会让人更加容易生病，尤其是深度睡眠和快速眼动睡眠时间不足时。
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