Mehmet C. Oz, MD is vice-chair and professor of surgery at Columbia University. He directs the Cardiovascular Institute and Complementary Medicine Program at New York Presbyterian Hospital. His research interests include heart replacement surgery, minimally invasive cardiac surgery, complementary medicine and healthcare policy. Dr Oz is the health expert on The Oprah Winfrey Show. He is chief medical consultant to Discovery Communications and has hosted several shows, including Second Opinion with Dr. Oz and Life Line. In addition to belonging to every major professional society for heart surgeons, Dr. Oz was elected as a Global Leader of Tomorrow by the World Economic Forum, won the prestigious American Association for Thoracic Surgery Gross Research Scholarship and has received an honorary doctorate from Istanbul University. Dr. Oz received his undergraduate degree from Harvard University and obtained a joint MD and MBA from the University of Pennsylvania School of Medicine and Wharton Business School