Is it possible to turn back the clock on our metabolism, burn fat, and increase longevity, all while being able to enjoy the food we eat? According to our guest today, it most certainly is. Dr. William Li is an internal medicine specialist, scientist, and New York Times best-selling author. His groundbreaking work in the field of angiogenesis – which is the process of developing new blood vessels in the body – has led to 40 new medical treatments for cancer, diabetes, and obesity, to name a few.