GUT Instinct, Transform Your Life and Health with the Power of Your Gut Are you ready for a shift in health? Get ready for no gimmicks, no pills, no shakes, and no miracles. This book is going to inform you of some plain old simple methods that work by design, introducing overall health that begins in the gut. As the wife of a truck driver, Carolyn O'Byrne, CHT is interested in truckers and their health. Though this book is written primarily with the trucking industry in mind, everyone can benefit by adhering to the ideas outlined in this book.