Dont worry ,be happy!

Recently I came across an old edition of readers digest which had an interesting article:
Sorely tested:
feeling positive not only improves your outlook on life ,it can also lessen physical pain. Researchers in university of Tulsa,USA,studied people who were given a collection of photographs to view- some pleasant, some neutral and some unpleasant. While viewing the pics,the subjects were given random shocks of pain,and asked to rate the intensity of pain and shock. Not surprisingly,the highest level of pain was recorded when viewing unpleasant pics like attacking animals or people using the weapons.
Neutral pics- of a basket ,for example -and pleasant pics of attactive people elicited far better responses.Yet another reason to believe in "Dont worry be happy" :)