Is there a health benefit to smiling?

Possibly: Smiling alone may not be enough, but there is evidence to suggest that people who are happy do better with certain kinds of illnesses. Interestingly, crabby people also have survival advantages in some disorders. Why this might be so remains an area of interest to clinicians and researchers.

Smiling: Endorphins are released, which make you feel less stressed. The stress hormone Cortisol is reduced and homeostasis is stimulated. Emotions are released instead of bottled up, so people are drawn closer and your confidence is raised.