When we sleep, for example, the saliva stream slows, and sulfur producing bacteria gain the upper hand, producing classic "morning breath".

例如，当我们睡觉时，唾液流变慢，产生硫的细菌占上风，便会产生典型的“晨起口臭”。

youdao

Previous research has found that the brain activity producing spindles, which only occur during sleep, kept sensory information from passing through an area of the brain known as the thalamus

先前的研究已经发现，大脑活动产生的纺锤波，只会在睡眠中出现，它能抑制感觉信息通过大脑中叫作丘脑的区域。

youdao

No matter we are in action or sleep, our brain keeps producing electric current and intense pulse that is, the so-called brain waves.

我们的大脑，不论行动坐卧或是睡觉，都会不断的产生「电流脉冲」，这些电流也就是所谓的「脑波」。

youdao