Dean Ornish

Dean Ornish, M.D., directed clinical research proving, for the first time, the heart disease and early-stage prostate cancer may be stopped or even reversed by comprehensive lifestyle changes, without drugs or surgery. He is founder and president of the non-profit Preventive Medicine Research Institute and Clinical Professor of Medicine at the University of California, San Francisco. His newest research was the first to show that changing your lifestyle changes your genes - "turning on" disease-preventing genes, and "turning off" genes that promote breast cancer, heart disease, and other illness, and increasing telomeres - the ends of your chromosomes that control how long you live. Our genes are not our fate.

He is Medical Editor of The Huffington Post, chairs the Google Health Advisory Council, and authored six best-selling books. He was recognized as one of the "Time 100" in integrative medicine, and chosen by LIFE magazine as "one of the fifty most influential members of his generation".