Keith G. Lowenstein, M.D., is board certified in psychiatry and integrative medicine. He began his study of the mind-body interface in 1971 with training in transcendental meditation and in 1980 began his training in Kriya yoga with Ganesh Baba. He maintains an integrative mental health private practice in Portland, Oregon. Andrea J. Lett, M.A., is a body-mind wellness practitioner with 20 years’ experience practicing and teaching meditation and yoga. An award-winning writer, she lives in Portland, Oregon.