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Why is yawning contagious? Why is yawning contagious

We all yawn. When people are tired or sleepy, yawns often come with us. It's hard to get rid of them. Yawning is so common, but have you ever heard of the fact that yawning is contagious? Is it true? This article will reveal the secret.

Reasons for yawning

There are many opinions about the reasons why people yawn. Here are the two most recognized.

1、 Weariness

This theory is mainly related to life experience. We often see people stretch and yawn when they are tired of things. Therefore, this theory holds that when people are tired of some things, they will subconsciously use yawning to express their emotions, while in the face of things they like, people will basically not yawn.

2、 Invigorating theory

This view is also based on life experience: students who study hard at night will yawn, and drivers who drive at night will yawn. However, people seldom yawn when they are resting. Therefore, yawning is a conscious refreshing response of the body and an expression made by a person who must satisfy his sober state.

According to this theory, yawning can help the body discharge more carbon dioxide, accept fresh air, and relieve our fatigue. Therefore, yawning is a kind of relaxation of the body, can play a refreshing role.

Is yawning contagious

Yawning can also infect? I believe that you will have ten thousand disbelief in your heart. If you only hear that diseases can be transmitted, but you haven't heard of behaviors, they will be contagious. If so, what is the infectious factor? What is the medium? It will not be the air?

Don't mention that the vector of yawning is air. Studies have shown that, as a social creature, people will leave images in the brain on the basis of understanding other people's behaviors, and unconsciously imitate them. This process is called imitation reflex. Therefore, when a person yawns, others will imitate the yawn in the brain. In addition, if the body is tired and other conditions, the body will also adopt the same way to alleviate fatigue.

Therefore, there is a saying that yawning is contagious. Not only yawning, but most of the behaviors in life are infectious. This is also the reason for the formation of regional differences.