This book is a guide for people suffering from the symptoms of adrenal fatigue. If that sentence doesn't bore the bejesus out of you, this book may be for you.
The Spent Program is a 6 week program consisting of "Daily Beats" and "Sleep Beats." Each day, Dr. Lipman suggests a specific healthful improvement, generally adding or removing some nutritional or movement element to your routine. Some of the changes persist throughout the 6 week program (giving up sugar, starting on Day 1), while others are suggested once--like certain yoga postures--although you're encouraged to come back to those you enjoy as much as you like.
Dr. Lipman designed the program to make it reasonably easy to implement, but he stresses that it's more important to make small gradual improvements than to follow it 100% perfectly only to quit in exasperation. With that in mind, I've personally been sort of lazy about some of the yoga/breathing exercises, despite the fact that most of these only take 10 min, and I've also skipped past certain unappealing dietary changes (no coffee) in favor of sexier ones (herbal tonics! smoothies!). And that's okay. I still feel a remarkable improvement to my health.
I think the hardest change for me has been the breathing exercise, which is really just a 3 minute meditation. The problem I think I'm having is that it cannot be rushed. My approach to most of this is pretty aggressive, but there's no way to aggressively meditate for 3 min.
Nonetheless, in just 3 weeks of half-assing this thing, I feel light and vibrant, and less inflamed. It's hard to describe that feeling well, but essentially I'd felt somewhat puffy and flabby, and I now feel that my body is denser and more compact, with the result that I haven't lost any weight, but my body has tightened noticeably and my clothes fit better. That said, most people report that they lose weight from Spent--I just didn't really have a serious metabolic problem or excess weight from the outset, but a lot of people with this condition will see an improvement here.
Anyway... My review is that this is an excellent book. The writing is transparent, and the content is clear and strong. My nutrition is probably more complete than most of the people I know, with the possible exclusion of nursing babies, and my condition is improving at a rate that far exceeds what my expectations were for it. Yay!