Bill Douglas is the Tai Chi Expert at DrWeil.com Founder of World T'ai Chi Qigong Day (held in 50 nations each year) and has authored and co-authored several books including a 1 best selling Tai Chi book The Complete Idiots Guide to Tai Chi Qigong. Bills been a Tai Chi source for The Wall Street Journal New York Times etc. You can learn more about Tai Chi Qigong and also contact Bill Douglas at http://www.worldtaichiday.org