Yawning becomes contagious at the age of 4 years.
Many have noticed how contagious yawning: as soon as someone near you will do it, then want to yawn in response.
It turns out that it’s not what we really want to yawn, and we do it unconsciously, simply because our brains can not resist the contagious desire.
According to studies, when a person sees yawning faces in photos or videos, it can provoke him to yawn. Not necessarily to see wide-open mouth, just look at the typical closed eyes.
Scientists have linked the contagious yawning with empathy — the ability to share other people’s emotions and feelings. They found that when the response yawning after looking at the pictures with yawning creatures (animals including) humans are especially active parts of the brain responsible for empathy.
The man is clearly empathizes with yawning and immediately wants to share their “difficult.”
It was found that yawning becomes contagious at the age of 4 years. The phenomenon is explained by fatigue, boredom or lack of oxygen. Temperature “zavalnym window”, when we do this particularly active, is considered to be about 20 °C — just the average temperature in the rooms where we work daily.
