Over the past years, the human microbiome has been dramatically altered. Chemicals in our environment, over exposure to antibiotics, and industrialized food, have created changes that pose silent dangers for health. According to Dr. William Davis, we desperately need to reintroduce our bodies to the microbial species that once lived in our ancestors, while pushing back the army of interlopers that have taken their place. Dr. Davis talks about how we can reprogram our microbiome to improve our health. Dr Davis is a cardiologist and author of the number one New York Times bestseller, Wheat Belly., and, Super Gut: A Four-Week Plan to Reprogram Your Microbiome, Restore Health, and Lose Weight.