A good smile and a belly laugh can be an exercise for the face and the diaphragm. It makes you look younger because of the thousands of muscles that undergo a workout when we are smiling as well as when we laugh. This workout will leave your muscles and shoulders stronger. It gives your heart a great workout too.
A Big smile brings your center of attention away from guilt, anger, negative emotions, and stress. It will boost your self-confidence and make you happy.