My gut reaction is that book is pretty good, I've never found the time to read it.
From the back cover: "Even happiness can give you a stomachache! ...And you know all too well what tension, anger and anxiety can do. If your emotions go straight to your stomach, you're a 'gut reactor,' and you're not alone! Millions like yourself are plagued by gastrointestinal disorders for which no physical cause can be found... Now a leading gastroenterologist explains how and why you suffer from gut reactions, and tells what you can do to find relief."
