The yawns There are various hypotheses as to its origin. They are always associated with tiredness, fatigue and lack of dream. It is that before sleeping, when it seems that our body is about to shut down due to lack of energy, we begin to yawn. But scientists assure that they fulfill an oxygenation mission. According to this theory, it is intended to put itself back into action because a large amount of oxygen is introduced when yawning, with which the brain automatically oxygenates itself and begins to pay attention. But then how is it produced? contagion?
The same scientists explain that if it were not for the act of yawning, either for oxygenation or for dream, certain muscle groups that allow jaw movements could not be reactivated. Therefore, by yawning you get in shape, at the same time that it benefits the brain.
This is what science says about yawning infections
It has probably happened to us that we see someone yawn and we automatically repeat it. A study on the reason why the contagious yawns explained that there is a relationship between contagion and empathy. These findings determined that yawning is a way of showing solidarity with people who are experiencing a sensation that, in this case, is usually related to stress, anxiety, boredom or fatigue.
Ivan Norsica, from the Museum of Natural History of the University of Pisa, Italy, and Elisabetta Papalagi, from the Institute of Cognitive Sciences and Technologies in Rome, were the authors of the research and explained that it is a mechanism for sharing emotions. He contagion of the act of yawning reflects the emotions of both people.
The investigation carried out over a year and a half, with data from more than 100 adults from different countries, came to the conclusion that the yawns They are more frequent among relatives, that is, it is more likely that you will infect a brother or cousin with a yawn than a stranger, whether it is caused by oxygenation or by the presence of dream.