A sports psychologist explains the benefits of smiling while running and how it can make the miles feel a little more effortless. There are many special things about marathon world record holder Eliud ...

Psychologists reveal that smiles do not always signal happiness. Facial expressions often depend on personality, cultural norms, and social habits. Some people naturally express emotions less.

Smiling more often -- even if you don't feel like it -- might actually make you feel happier, a newly release study found. According to a report published in the peer-reviewed scientific journal ...

Zach Hadel and Michael Cusack, the co-creators of Smiling Friends, don’t really watch many cartoons these days. It’s something they’ve shared before in interviews, and something they reiterate on a ...