Charming smile is hereditary

One study showed a way to show smiles programmed in the gene, so someone who owns the smile is charming but many people can cause feelings of laughter when smiling.

Previously, many scientists believed that people learn to express emotions by observing others. To see if this is true or not, David Matsumoto, a psychologist at the University of San Francisco (USA), conducts testing for blind adults, because they cannot observe others from the very beginning of their mother's womb. .

'The blind person has no chance to observe how other people express their emotions, but the way they express their feelings is exactly the same as the eyes of a bright person. So there must definitely be another mechanism, ' David explained. He and his colleagues compared facial expressions in 4,800 photos of Judo athletes in the Summer Olympics and the Olympics for the Disabled in 2004.

In the Olympics for the disabled, the athletes competed in many rounds so that only two people could compete in the final. Athletes win the gold medal, and the loser receives the silver medal.

The athletes who lost in the finals tend to smile wryly when they step on the podium to receive a medal. With that kind of smile, they only use mouth muscles. Meanwhile, the smiles of gold medalists mobilize the participation of mouth muscles, eye muscles and cheek muscles. Athletes who lost their eyes in the final round also had similar expressions.

'The lower lip of the failed people tightened up after laughing. That's how they control feelings of depression, frustration, " David commented. The team found that blind athletes also expressed anger, sadness and contempt like normal people. Many blind people have a kind of charming smile even when they are sad, but there are also people who have a "grin" smile despite being extremely happy.

According to David, all of these expressions are dominated by genetic genes. Many scientists have previously said that if a mother possesses an attractive smile, the girls or even her son tend to inherit this charm.

David makes further conclusions: "I think our emotions, along with the mechanism of controlling them, are traces that the ancestors left behind in evolution. When experiencing negative emotions, Our mouth closes instinctively so we can't scream, bite or swear. "

This psychologist has conducted a study on how to demonstrate athlete's pride when winning, by observing bright eyes and blind people. He found that blind athletes also expressed pride like ordinary people - raised their heads and puffed their chest when standing on the podium to receive medals.