Celebrated on May 31st
It’s a universal sign of happiness: While hand shakes, hugs, and bows all have varying meanings across cultures, smiling is known around the world and in all cultures as a sign of happiness and acceptance. Smiles are contagious: It’s not just a saying: smiling really is contagious, scientists say. In a study conducted in Sweden, people had difficulty frowning when they looked at other subjects who were smiling, and their muscles twitched into smiles all on their own.
Newborns are able to smile. Most people think it takes a few weeks for that first smile, which is true if you do not count smiles in their sleep. Babies start smiling in their sleep as soon as they are born. It makes you wonder what kinds of things a newborn has to smile about, right?
We still smile at work: While we smile less at work than we do at home, 30% of subjects in a research study smiled five to 20 times a day, and 28% smiled over 20 times per day at the office. Smiles use from 5 to 53 facial muscles: Just smiling can require your body to use up to 53 muscles, but some smiles only use 5 muscle movements.