Visitors to China are often amazed when they look out their hotel room windows early in the morning. In parks, squares, plazas, and schoolyards, ten of thousands of Chinese of all ages – but particularly the elderly – begin their days with slow, graceful, beautiful choreographed routines called tai chi chuan, generally known in the United States as tai chi. Practitioners of tai chi say that this centuries-old dancelike exercise, which is derived from the martial arts, clears the mind... more