One in five adults suffer from IBS, yet IBS still baffles the medical profession as there are no definitive tests for it--it's often the diagnosis given in the absence of any positive tests. As such, it encompasses a huge variety of gastrointestinal disorders and many suffers fail to get the treatment they need. This book brings together over 30 years of research at the busiest IBS clinic in the country and will serve to both educate...