Dr. Marc Halpern (Dr. Siva) is founder and President of the California College of Ayurveda, the oldest school of Ayurvedic Medicine in the United States. He is a leader in the development of Ayurvedic Medicine in the United States. He is the initiator and co-founder of the National Ayurvedic Medical Association, the National Council on Ayurvedic Education and the California Association of Ayurvedic Medicine. He has written three textbooks on the principles and clinical practices of Ayurvedic Medicine used at colleges across the United States and the popular book, Healing Your Life; Lessons on the Path of Ayurveda. He is also author of the #1 best-selling Meditation CD in the United States: Yoga Nidra and Self Healing. He also sits on the editorial boards of five different indexed research journals in the United States and in India. Marc Halpern was originally a Doctor of Chiropractic Medicine and post-graduate specialist in Holistic Medicine. He began his studies of Ayurveda in 1991 with Dr. David Frawley and went on to study Ayurvedic Medicine with Dr. Subhash Ranade in 1993. He is also a teacher of Yoga in the Sivananda Yoga lineage.