Participants gathered together and practiced their Laughter Yoga during the 'World Laughter Day' observations in Hong Kong on May 6, 2012. Laughter Yoga is the brain-child of physician Madan Kataria which combines laughter with Pranayama or yogic breathing and is performed in groups as a form of exercise.
Photo credit: Tyrone Siu / Reuters
People practice Laughter Yoga during the "World Laughter Day" celebrations in Hong Kong May 6, 2012. Laughter yoga was launched in 1995 by Dr. Madan Kataria, a physician in India, and there are now more than 6,000 clubs in 60 countries, the organization said.