World Laughter Day is celebrated annually on the first Sunday of May (May 3, 2026) to promote global peace, wellness, and the positive health benefits of laughter, initiated in 1998 by Dr. Madan Kataria. Madan Kataria, founder of the worldwide Laughter Yoga movement. Dr. Kataria, a family doctor in India, was inspired to start the Laughter Yoga movement in part by the facial feedback hypothesis, which postulates that a person's facial expressions can have an effect on their e
