Cardiologist, researcher and Clinical Professor of Medicine at the University of California. He  has been a consulting physician of former president of USA Bill Clinton for many years. He was also appointed by Barac Obama to the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health in 2011. He has been conducting researchers on the impact of stress level and diet on health since 1970 (especially their connections with heart disease). He proved that  coroonary disease can be reversed by lifestyle changes (especially diet) which had been believed to be impossible before. Our great inspiration and source of evidence-based knowledge!