You've probably heard about people talking in their sleep, saying things out loud while completely passed out and no memory of it the next day.
您可能听到过有人在睡觉时说梦话，毫无意识地大声说话，但是第二天就记不清了。
But why?
但是为什么呢？
What causes people to talk in their sleep?
是什么导致人们在睡觉的时候说梦话呢？
And what kinds of things do they say?
他们说的是什么呢？
Let's find out, on today's episode of
"Colossal Questions"!
让我们在今天的十万个为什么中一探究竟吧。
Studies show that around two-thirds of the population have talked in their sleep at some point in their life.
研究表明，大约有三分之二的人在一生中的某个时刻会说梦话。
Sleep talking, known by the fancy scientific name of somniloquy, usually just amounts to a few random words or sounds spit out, rather than a full on sentence.
说梦话，有个花哨的科学性的名字叫梦呓，通常只是说出一些随机的单词或声音，而不是一句完整的句子。
But occasionally someone will carry on a whole conversation while asleep.
但是偶尔有人会在睡觉时会进行完整的对话。
Sometimes we sleep talk in reaction to something that happens to us in a dream.
有时候，我们说梦话是为了对梦中发生的事情做出反应。
This is called a motor breakthrough, when your mouth and vocal chords speak the words out loud that you're saying in your dream.
当你的嘴巴和声带大声说出自己在梦中说的话时，这就是所谓的运动突破。
Another common moment that we sleep talk in is while transitioning between the different stages of sleep.
我们说梦话的另一个常见的时刻是在睡眠的不同阶段之间过渡。
Whenever you go from one stage to the next, you briefly become half awake.
每当你从一个阶段过渡到下一个阶段时，你会短暂地进入半梦半醒状态。
So that's when you talk in your sleep, but how does it actually happen?
所以那就是你会说梦话的时刻，但它是如何发生的呢？
Well, the truth is no one really knows why some of us talk in our sleep.
额，事实是没有人知道为什么我们中有些人会说梦话。
That's because unlike other similar issues, like sleepwalking, talking in your sleep poses no real danger, it's not classified as a disorder, and doctors consider it to be just a normal occurrence.
那是因为与其他类似的问题比如说梦游不同，说梦话不会带来真正的危险，它并没有被归类为一种疾病，而医生认为这是正常现象。
So because it's not officially considered a disorder, there's not nearly as much need or interest in trying to figure it out.
由于官方并未将其视为一种疾病，所以并没有很大的需要或兴趣来把它给搞清楚。
But there is one thing that scientists try to make clear: what someone says while they're sleeping is utter nonsense, completely random.
但是科学家试图搞清楚的一件事是：大家在睡觉时所说的梦话是完全没有意义，完全随机的。
The bits of research that has been done on sleep talkers have shown that there's no connection between waking memories and the random things someone says in that state.
对说梦话的人所做的一些研究表明，唤醒记忆与在该状态下说的随机的话语之间没有任何联系。
So rest assured: your sibling isn't ever going to hear you spill your deepest, darkest secrets while you're asleep talking, just some funny, silly sounds.
所以放心吧：你的兄弟姐妹永远不会听到你在睡觉时说出最隐藏最黑暗的秘密，而只会听到一些滑稽愚蠢的声音。
2026年2月26日于经典龙苑
