Shirley Telles, Ph.D., directs research at Patanjali Research Foundation, Haridwar, India. She is the head of the Indian Council of Medical Research Center for Advanced Research in Yoga and Neurophysiology in Bangalore, India. She researches the physiological effects of Yoga, Yoga for rehabilitation and health, and higher states of consciousness induced by meditation. She has published 3 books, and over 100 research articles.