Why do you always talk politely when you sleep?

Talk in a Dream: Please show me the travel itinerary code.

Many netizens have paid tribute and hope that the epidemic will end as soon as possible. First-line epidemic prevention personnel should pay attention to rest.

There are also netizens who talk in their sleep, saying that they will talk in their sleep at night after being highly nervous and tired.

So, what is talk in a dream? Is it bad for your health?

Why do people talk in their sleep?

Talking in your sleep, also called talking in your sleep, is a common phenomenon. Studies show that as many as 20% of children and 6% of adults often talk in their sleep and can't remember when they wake up.

Common types of talk in a dream include:

Ask yourself and answer yourself;

Play many people talking in turn, as if someone were talking;

Complaints, whispers or shouts that form sentences or phrases;

Nonsense, no sentence;

Sing or laugh suddenly.

If you find that your roommate or partner has the above phenomenon, it is normal. Don't make a fuss.

Talking in a dream may occur at any stage of sleep, except for active sleep (NREM) and active sleep (rapid eye movement).

Generally speaking, talk in a dream lasts about 9 seconds on average in REM stage, which is related to dreams, so the logic of talk in a dream is clearer. But in NREM, it has nothing to do with dreams, mainly nonsense and other meaningless language, which lasts about 4 seconds on average.

Although the reason for talking about sleep is still controversial in the medical field, the mainstream view is that some nerve cells that are still awake during sleep are still "working at night". At this time, the language center and the motor nerve cells that control the mouth muscles, if still in a certain degree of excitement, will direct people to speak.

Another interesting study found that people are more likely to spit out fragrance when they talk in their sleep.

In daily life, the proportion of subjects swearing is only 0.003%, but it increases 800 times directly when dreaming, reaching 2.4%!

One possible explanation is that when dreaming, the activities of the middle and lower frontal cortex related to education are relatively insufficient. Although the brain is working hard, it is not working at full capacity, or it is lazy, which leads to the situation that it can't control itself.

Does talking in your sleep affect your health?

In most cases, talking in sleep occasionally is harmless to the body and does not need treatment, which is mainly related to stress, overwork, emotional instability, mental tension, heredity and other reasons.

However, if a person suddenly talks in his sleep often, or the following situations occur, it is likely to be related to sleep disorder, which needs attention and early medical treatment.

This is because sleep disorder easily leads to long-term fatigue and listlessness, which seriously affects study and work. Long-term lack of sleep will also increase the risk of cardiovascular and cerebrovascular diseases, depression and other diseases.

(1) The dream is strong.

I often have violent dreams or nervous nightmares, and show them through physical behavior when I talk in my sleep.

Studies have shown that patients with rapid eye movement sleep behavior disorder (RBD) may speak loudly, use emotional language and make actions similar to dreams in their sleep.

(2) Children's night terrors

This refers to the sudden awakening from a deep sleep, accompanied by screaming, abnormal behavior and sexual intercourse caused by strong fear.