Eight, it happens in REM sleep.

第八，它发生在快速眼动睡眠期。

Then REM sleep emerges, rapid eye movement sleep.

这时就进入REM快速眼动睡眠。

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。

When we sleep, we experience cycles of REM sleep and non-REM sleep. Rapid eye movement sleep is when your eyes move quickly from one side to the other.

当我们睡觉时，我们经历了快速眼动睡眠和非快速眼动睡眠的周期。快速眼动睡眠是指你的眼睛快速地动来动去。

In between, some were allowed a nap with REM sleep, some a nap without REM sleep, while the others had a quiet rest period.

一些人虽然小睡但并未进入快速眼动睡眠状态；还有一部分人只是安静地休息了一会儿。

Foods high in fat have been found to lower sleep efficiency and REM sleep, while increasing slow wave sleep.

高脂食物被发现会降低睡眠效率和快速眼动睡眠，同时会增加慢波睡眠。

The two researchers called this Rapid Eye Movement or REM sleep.

两位研究员称这种睡眠阶段为快速眼动睡眠.

And this tells you, of course, how much you had in REM sleep, in deep sleep, and all this sort of thing.

这个还告诉你，你分别处于快速眼动睡眠、深度睡眠或其他睡眠状态的时间。

That said, sometimes talking in your sleep can be caused by certain sleep disorders, like REM sleep behavior disorder or night terrors.

话虽如此，有时，说梦话可能是由某些睡眠障碍引起的，比如快速眼动睡眠行为障碍或夜惊。

For example, high-activity REM sleep could trigger the robot to move as though it was flying.

例如，高度活跃的快速眼动睡眠能够引发机器人飞翔似的移动。