World Laughter Day (first Sunday of May)World Laughter Day is celebrated on the first Sunday of May every year. In 1998, the first celebration took place in Mumbai, India. It was arranged by Dr. Madan Kataria founder of the worldwide Laughter Yoga movement .You know many doctors and even science also telling this truth by laughing we can resolve many of our difficulties which has came out from ourness .Smile is precaution for every patient and who will laugh and laughing to others definitely he will become a idol to on that society who never had thought one day someone will come for our life would give us bright smile .It is great source .have well power .