A 2017 study done at Western University in Ontario, Canada and published in the journal Psychonomic Bulletin and Review showed that smiling can make you appear to be two years older than if you wear a poker face. And if you reacted to that finding with a look of surprise, well, that expression might just have dropped years from your visage.
A release from the university quotes study co-author Melvyn Goodale, director of the Brain and Mind Institute at Western University, as saying, “We associate smiling with positive values and youth. Think of all the skin-care and toothpaste companies that sell the same idea every day.” Her co-author was Tzvi Ganel from Ben-Gurion University.
Yet this study, in which researchers flashed images of people with smiling, neutral and surprised expressions, showed the opposite: Participants perceived the surprised faces as the youngest and smiling faces the oldest.
“The striking thing was that when we asked participants afterwards about their perceptions, they erroneously recalled that they had identified smiling faces as the youngest ones,” Goodale said. “They were completely blind to the fact they had ‘aged’ the happy-looking faces. Their perceptions and their beliefs were polar opposites.”
Goodale said the aging effect of a smile stems from people’s inability to ignore the wrinkles that form around the eyes during smiling. A look of surprise, on the other hand, smooths any wrinkles.
“It may seem counterintuitive, but the study shows that people can sincerely believe one thing and then behave in a completely different way,” Goodale said.
