I don't agree with everything in this book, but Powter does have an edge since she's been fat. Her story of her fat years, about feeling miserable and isolated and the quotes from other women (how they feel invisible being fat when people won't even look right at you, and other sad anecdotes) are very moving. I think reading that stuff was more motivational for me than anything else. I never really got into the breathing thing, etc. Ultimately I think you lose weight by cutting calories and exercising more. Her breaking the system, or however she puts it exactly, are mainly about eating lots of low-fat and fat-free foods and cutting out the fatty stuff. For instance, you can eat one 100-calorie cookie and its calories are equivalent to, say, 5 cups of broccoli. But the broccoli's fat free. Yes, it's healthier to eat the broccoli, but sometimes you want a cookie. It'd make more sense for people to have one cookie and eat sensibly throughout the day and take a good walk a few times a week. Not high-volume eating of fat-free stuff. As for the breathing and other stuff, well, it's a bit off for me. But the stories did hit a chord with me, and that's worth something. And by the way, when I did read this book, I did lose some weight, but ultimately I got tired of the broccoli, etc, and put some back on. Now I'm counting calories and trying to work out to Denise Austin's Lifetime fitness programs at least five days a week, and I do let myself have the occasional cookie, and my clothes are feeling looser.