If you are interested in the nature of laughter and its affects on
stress and immunology, perhaps you would like to read my piece:
Laughter as a displacement activity: the implications for humor
theory.

It can be accessed through the academic section of HumorLinks.

http://www.humorlinks.com/cgi-bin/sites/page.cgi?g=Academic%%2Findex.html&d=1&imp...

Scroll down to the picture of the elephant and the blind men and click
on: "A new perspective on laughter and humor"

Let me know what you think.

Baz