The study, published in the Journal of Cognition & Emotion, the researchers showed that facial expressions have a major influence on how people with older age. Smile it makes a person of a younger appearance. In fact, most people tend to underestimate a person’s age when he saw photos of them smiling.
Various ways people do to make it look more youthful than the actual age. The most common is to use cosmetic products or taking certain supplements. Though a simple way like a smile, can make someone look younger than actual age.
DariJerman researchers conducted a trial of some people to guess the age of others by looking at some pictures of faces of 171 young people, middle-aged, and older. In some photos, showing a smiling face. On the other hand, displayed also photos with angry facial expressions, fear, disgust, or sadness.
Researchers gave several reasons for age-related effects of a smile. First, it would be difficult to say whether the wrinkles that appear on the face when smiling is temporary or permanent. Second, with a smiling person will look more attractive and have a positive effect as a young child. So that others will judge them younger than actual age.