Smile Big – You Could Live Longer

Posted on June 22, 2010


Bigger smiles may mean longer life, says an article in The Chicago Tribune. The article explores a study published in the journal Psychological Science that looked at the smiles of professional baseball players and how long they lived.

At Wayne State University, researchers used the Baseball Register to evaluate the smiles of professional baseball players who began their careers before 1950. They looked at 230 photos which were enlarged so they could rate the intensity of the smile. They compared the rated smiles with data from deaths between 2006 and 2009. After accounting for other factors such as career length and body mass index they concluded that players with bigger smiles lived longer.

The study found that among players who had died, those with no smiles lived approximately 72.9 years. Players who had partial smiles, had an average lifespan of 75 years. Finally, players with big smiles had an average lifespan of 79.9 years.

According to the article, the researchers stated that smiles are a sign of “positive emotion” and that can have a positive impact on health.