Sat Bir Singh Khalsa, PhD, has been fully engaged in basic and clinical research on the effectiveness of yoga and meditation practices in improving physical and psychological health since 2001. He has also practiced a yoga lifestyle since 1973 and is a certified yoga instructor. Sat Bir is the Director of Research for the Kundalini Research Institute, Research Director for the Kripalu Center for Yoga & Health, and an assistant professor of medicine at Harvard Medical School at Brigham and Women’s Hospital. He has conducted clinical research trials evaluating yoga treatments for insomnia, anxiety disorders, post-traumatic stress disorder, and chronic stress as well as a yoga program in public schools to determine benefits in mental health in adolescents. Additionally, he actively works with the International Association of Yoga Therapists to promote research on yoga therapy and collaborates with yoga researchers internationally. He has also been teaching an elective course at Harvard Medical School in mind-body medicine and is the author of the Harvard Medical School ebook Your Brain on Yoga.