T'ai Chi Chuan - meaning "Grand Ultimate Fist" is an internal martial art, and has, for centuries, been a source of health, vitality, and longevity for millions of people in the Far East. T'ai Chi is classified as an aerobic exercise as the movements create cardiovascular benefits. However, unlike most aerobic exercise, T'ai Chi is done slowly and with low impact - but don't be surprised at the amount of heat your body generates while performing this "gentle" exercise.