Many years ago, Norman Cousins was diagnosed as “terminally ill.” He was given six months to live. His chance for recovery was one in 500.

He could see the worry, depression and anger in his life contributed to, and perhaps helped cause, his disease. He wondered, “If illness can be caused by negativity, can wellness be created by positivity?” He decided to make an experiment of himself.

Laughing was one of the most positive activities he knew. He rented all the funny movies he could find – Keaton, Chaplin, Fields, the Marx Brothers. (This was before VCRs, so he had to rent the actual films.) He read funny stories. He asked his friends to call him whenever they said, heard or did something funny.

His pain was so great he could not sleep. Laughing for 10 solid minutes, he found, relieved the pain for several hours so he could sleep…