白天犯困打瞌睡，想必大家在日常生活中都经历过。但如果你是经常性地不分场合的白天犯困，而且困意是不可控制的，还能秒入睡，那可就得小心了，可能是患上了一种并不罕见的罕见病“发作性睡病”。

Sleepiness during the day must have been experienced in our daily life. However, if you are often sleepy during the day, and sleepiness is uncontrollable, and you can fall asleep in seconds, you have to be careful. You may be suffering from a rare disease called narcolepsy.

中国约有70万名发作性睡病患者

There are about 700000 narcolepsy patients in China

视频中这个孩子前一秒还在吃饭，突然间睡着打翻了饭碗。这个孩子走着路就突然睡着倒下了，清醒后一时间甚至无法站立。这些都是典型的发作性睡病的症状。专家介绍，发作性睡病是一种慢性睡眠障碍，在国际上属于罕见病，在我国的发病率约为两千分之一，其实并不罕见。目前，我国约有70万名发作性睡病患者，超过三分之二在七八岁左右就会发病。

In the video, the child was eating a second ago and suddenly fell asleep and knocked over his job. The child fell asleep while walking, and even couldn't stand up for a while after waking up. These are typical symptoms of narcolepsy. Narcolepsy is a chronic sleep disorder, which is a rare disease in the world. The incidence rate in China is about 1/2000, which is not uncommon. At present, there are about 700000 narcolepsy patients in China, and more than two-thirds of them will get sick at the age of seven or eight.

北京大学人民医院睡眠中心主任韩芳：这种犯困跟别的不一样，我们经常讲就不可控制的犯困。而且这种犯困有一个特点就是秒睡，同时睡几分钟甚至几秒钟马上头脑就清楚，但一会又不行了。这个病还有一个特点，我们叫发作性地抽倒，一高兴一激动身上就软了没力气了，像过电一样突然就软一下，甚至是倒在地上了，跟情绪相关的。

Han Fang, director of sleep center of Peking University People's Hospital: this kind of sleepiness is different from others. We often talk about uncontrollable sleepiness. And one of the characteristics of this sleepiness is sleeping for a few seconds, sleeping for a few minutes or even seconds at the same time, the mind will be clear immediately, but it won't work after a while. Another characteristic of this disease is that we call it paroxysmal collapse. When we are happy and excited, we feel soft and have no strength. Like electricity, we suddenly feel soft and even fall to the ground, which is related to emotion.

专家介绍，如果一个人经常有睡眠瘫痪的表现，也就是俗称的“鬼压床”，也要警惕是不是得了发作性睡病。此外，在入睡或睡醒时出现幻听、幻视、幻触，经常做白日梦，或者晚上正常的睡眠只能保持一两个小时，之后就经常做一些极为恐怖的噩梦，这些也是发作性睡病的临床表现。

Experts said that if a person often has the performance of sleep paralysis, which is commonly known as "ghost pressure bed", we should also be alert whether he has narcolepsy. In addition, auditory hallucinations, vision hallucinations and touch hallucinations occur when you fall asleep or wake up. You often daydream, or you can only keep a normal sleep for an hour or two at night, and then you often have some terrible nightmares. These are also the clinical manifestations of narcolepsy.