Introductory gentle yoga: Wednesdays 6:00 to 7:00 p.m. BodyMind Integration Center, 118 Main St. Watertown Sq. Intermediate yoga: Wednesdays 7:30 to 9:00 Watertown Sq. Yoga for a Healthy Back, March 19 through June 4, 2009, Brigham & Womens' Hospital. See www.yogacambridgema.com for details/registration. Or phone 617-354-0570, or email email@example.com. INDIVIDUAL YOGA THERAPY AND POSITIONAL THERAPY SESSIONS.