Why Genuine Smiles in Your Youth Predict a Happier Life
A 2001 study published in the Journal of Personality and Social Psychology by LeeAnne Harker and Dacher Keltner suggests that genuine, “Duchenne” smiles in college yearbook photos correlate with higher life satisfaction and more stable marriages up to 30 years later. The research, which analyzed the Mills Longitudinal Study, indicates that these expressions serve as … Read more