Laughter is an internal jogging

According to Norman Cousins, ‘Laughter not only massages

all the organs of the body but also defuses tension in every part

of the body.  Laughter acts as anesthetic and alleviates

depression which is the cause of major diseases.  Muscles

of abdomen get worked out, as do the thorax, diaphragm and the

circulatory and endocrine system.  Hearty laughter enjoys most of the

benefits attributed to physical exercise.’