Dr. Kataria named "Laughter Yoga" as such was because he incorporated Pranayama, the ancient science of yogic breathing, into the laughter exercises. Laughter Yoga is therefore a form of Pranayahahama :-)
With the US economy slumping, the going has got very tough, but the tough are no longer shopping. They're laughing. Not just any old laughter, but laughter yoga, a form of exercise that blends bold belly laughs and noisy "meditation" with rhythmic clapping, waddling around like a penguin or taking part in a conga line, and deep, yogic breathing.
Complementary Medicine: Laughter encourages and empowers people to actively participate in their health care
Dr. Gita Suraj Narayan, a Senior Lecturer at the School of Social Work and Community Development, University of Kwazulu-Natal (and a Certified Laughter Yoga Teacher!) recently proved that Laughter is a powerful form of complementary Medicine through her research and a series of Community Outreach Projects.