This program is run Tuesday and Thursday evenings year round. Each session runs 5 weeks. What is Tai Chi? Tai Chi is a noncompetitive, self-paced system of gentle physical exercise and stretching. To do Tai Chi, you perform a series of postures or movements in a slow, graceful manner. Each posture flows into the next without pausing. Anyone, regardless of age or physical ability, can practice this form. Tai Chi is used to reduce stress, increase flexibility, improve muscle strength and definition, increase energy, stamina and agility and increase feelings of well-being.