Laughter is the best medicine. We've heard this expression so many times. Now, we do know for sure the truth underlying this adage, for science has proved it beyond any further doubt. Laughter can distress and heal like nothing else can. When researchers monitored the human physiology under the effects of laughter, it became apparent that it also exercised the body albeit in a mild, but in a totally positive manner.
(http://www.goarticles.com)
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