We may believe that we are the masters of our fates, but in reality, we are at the mercy of hundreds of trillions of single-celled organisms that exert control over every aspect of how our minds and bodies function. These are the diverse species of microbes living in our guts, mouths, and skin that work together synergistically to communicate with each other and with every system in our bodies. You are your microbiome?s home, and it wants to take care of you, but first you have to protect it. In Gut Check, Dr. Steven Gundry reveals the emerging science proving that Hippocrates was right ? all disease begins in the gut. When our microbiomes are out of balance, it affects our immune systems, our hormone levels, our mental health, our longevity, and our risk of developing autoimmunity, heart, and neurodegenerative disease, as well as arthritis, diabetes, and cancer. Yet, not all hope is lost: disease can also be healed in the gut if we choose to treat our microbes right. In Gut Check, Dr. Gundry shows us how.