There is a long history involvement by Taoists in various exercise and movement techniques. (5,6) Tai chi in particular works on all parts of the body. It "stimulates the central nervous system, lowers blood pressure, relieves stress and gently tones muscles without strain. It also enhances digestion, elimination of wastes and the circulation of blood. Moreover, tai chi's rhythmic movements massage the internal organs and improve their functionality." Traditional Chinese medicine teaches that illness is caused by blockages or lack of balance in the body's "chi" (intrinsic energy). Tai Chi is believed to balance this energy flow.