For Better Health, Smile More

http://www.rd.com/slideshows/how-to-smile-for-better-health/
For Better Health, Smile More
Recent Dutch research on 481 participants, who made various faces expressing different emotions, found that both computer software and other people guessed that smiling people were younger than they actually were, but only for those over age 40. Those younger than 40 looked younger when they wore more neutral expressions.

Smiling Can Improve Your Wellbeing

http://www.rd.com/slideshows/how-to-smile-for-better-health/
Smiling Can Improve Your Wellbeing
After DePauw University researchers analyzed the grins of hundreds of graduates in multiple years of yearbook photos, they found that the top 10 percent of smilers had a divorce rate of about one in 20. Those in the bottom 10 percent, however, were five times as likely to get divorced. “Smilers tend to be happier, more social, and more emotionally stable, all traits that lead to successful relationships.