Laughter is contagious and therapeutic. It helps us cope with stress, and relax with friends. It is an indication of happiness, the sole reason we go on living. People laugh at jokes, semantic humor, which relies on cognitive ability to process the "humor" therein, or sometimes at slapstick type behavior requiring no intellectual understanding. People laugh at different things and for different reasons, and for the few that are interested at the expense of the frog, it can be interesting to investigate. A good, hearty laugh relieves physical tension and stress, leaving your muscles relaxed for up to 45 minutes after. …
