laughing is the best medication || medicine

[peppy_man]

What does "laughing is the best medication (or medicine)" mean?
Thank you in advance.

[Tdol]

Laughter is the best medicine bcause a positive attitude is the best way to keep a person healthy, or so the idea goes.

[AlainK]

Yes, indeed : it's been proven by scientists that one minute of laughter is the equivalent of half an hour of relaxation.
Laughing is cheap and easily available, it can be a very efficient substitute to gurus, analysts and medication.

Read this for instance, and tell me if you don't feel better after :
http://news.bbc.co.uk/1/hi/world/americas/4557192.stm

Some associations even organise laughing week-ends and the 4th International Laughter Gathering will take place in Paris this year :
http://clubderire.free.fr/