Aim 2: Provide preliminary data on potential effects of Qigong vs. non-aerobic stretching exercises on fatigue, psychosocial outcomes, and health-related quality of life in preparation for a future R01 application for a larger, definitive randomized controlled trial. Hypothesis: Qigong participants will have improved fatigue levels, quality of life, and related psychosocial and health outcomes compared to those randomized to the non-aerobic stretching group.