About:

1. It was first celebrated on May 10, 1998, in Mumbai, India.
2. The day was arranged by Dr Madan Kataria, founder of the worldwide Laughter Yoga movement in 1998

Health benefits of laughter:

1. Produces a general sense of well-being 
2. The release of endorphins is triggered 
3. Boost T-cells 
4. Improve cardiac health 
5. Work your abs
6. Reduce stress hormone levels 
7. Lowers blood pressure