Why do people yawn and yawn when useful

Why do people yawn and yawn when useful

According to recent research, people yawn not because they are tired, bored or lack of oxygen, yawning helps to regulate the temperature of the brain.

One hypothesis suggests that yawning is caused by a reflex decrease in blood oxygen. But researchers have shown that neither reduction nor increase in oxygen or carbon dioxide does not cause a yawn. It was observed bending of the walls of the maxillary sinuses in yawning, which leads to a cooling of temperature-sensitive brain.

When yawning may be useful?

To stimulate thinking. Before the upcoming exam, a performance or an important conversation, to increase the productivity of the brain can just yawn a few times. If you can not concentrate or collect his thoughts, feel free to yawn a few times - it will help.

In order to improve mood and relationships. Yawning leads to increased levels of the neurotransmitter dopamine that is released and the hypothalamus is associated with pleasure, motivation, and sociability. When two people yawn at the same time, it may help to relieve tension. Fortunately, very contagious yawning, so it's easy to engage in other joint yawning. At the very least, cause a simultaneous yawn a smile.

To adapt to changing time zones. From the 20th week of pregnancy the fetus induces the production of the sleep cycle and at the same time he yawns a lot. We can consciously use yawning to facilitate adaptation to change time zones. After a long trip, to start zevnite about five times after exit from the aircraft. When you feel yourself how well it invigorate, you will begin to yawn instinctively.Thus, yawning can be used to adapt to long-distance flights, and to restore energy levels by changing your sleep and wakefulness.

For relaxation. Although yawning and serves to stimulate the brain, deep and prolonged yawn yet relaxes the body. Several deep yawns before bedtime will help to quickly fall asleep.