Laughter Yoga was developed by a Western trained physician, Madan Kataria MD and his wife Madhuri Kataria, in Mumbai, India in 1995. Laughter Yoga is a unique concept where anyone can laugh for no reason (e.g., without relying on humor, jokes, or comedy) in order to obtain the scientifically proven health benefits of laughter. Yoga means to yoike or unite. LY combines elements from Pranayama deep breathing (to deepen the impact), stretching, and laughter excercises that cultivate child-like playfulness. There are now more than 6,000 LY groups in over 68 countries around the world--and growing. (Kataria, Madan, MD. Dr. Kataria School of Laughter Yoga Certified Laughter Yoga Leader Training Manual. India, 2010 edition.)

Swedish Covenant Hospital in Chicago: patients are learning laughter yoga and are literally forcing themselves to laugh. For more for more information on Laughter Therapy and clubs: Chicago Institute of Neurosurgery and Neuroresearch 1-800-446-1234. (Perez, Sylvia. A Laughing Matter.)