OBJECTIVE: The overall goal of this project is to compare the effects of a 16-week Holistic Yoga Program (HYP) with a 16-week Wellness Lifestyle Program (WLP) on PTSD and related symptoms and outcomes. This project has three specific aims: 1) to compare the effects of the interventions (HYP vs. WLP) on overall PTSD symptom severity; 2) compare the interventions' effects on PTSD-specific symptoms (anger, sleep), PTSD-related symptoms (depression, anxiety, pain) and related outcomes (well-being/quality of life); 3) to manualize the Holistic Yoga Program and training process for experienced yoga teachers to deliver HYP to individuals who have PTSD in order to facilitate future study and dissemination efforts.