Dean Ornish, M.D., is the founder and president of the Preventive Medicine Research Institute in Sausalito, California and Clinical Professor of Medicine at the University of California, San Francisco. For over 30 years, Dr. Ornish has directed clinical research demonstrating that comprehensive lifestyle changes may begin to reverse even severe coronary heart disease, without drugs or surgery. Medicare has recently agreed to provide coverage for this program, the first time that Medicare has covered such treatment. His work has also demonstrated that appropriate lifestyle changes may...