"ABOUT THIS BOOK... Could you use a good laugh? This book will show you how to bring laughter into your life at any time of day--no special equipment needed, no new wardrobe, no expensive classes, not even a sense of humor! Laughter yoga is all about voluntary laughter--how you can learn to laugh even in the absence of humorous stimuli, and reap the extraordinary, scientifically proven benefits, which include stress reduction, pain relief, weight...