This review is from: The First 20 Minutes: The Surprising Science of How We Can Exercise Better, Train Smarter and Live Longer (Paperback)
Even though I'm giving this five stars I'm starting with a criticism - the title is both bad and misleading. I assumed the book was mostly about the importance of the first twenty minutes during an exercise session - but it coves far, far more than that, so the title undersells the book and probably causes some to pass on by.
What the author actually does is to look at the whole area of exercise, stretching, diet etc, not in a gimmicky or consciously revisionist way, but purely from the standpoint of what experts at the top of their professions have actually learned. That means these aren't theories but actual high-quality research and findings on what works and what doesn't in the areas of diet and exercise. It does shoot down a lot of long-held 'truths', but without being sensationalist. And the good thing for those who don't want to get too heavily into it all but just want to improve their health a little, it does help to simplify things.
I'm not a keep-fit fanatic, just someone who cares about his health; and I take an interest in the whole area just because I like to know whether the approach I'm taking actually is doing me any good. This is the best book I've ever come across in that regard and I'd recommend it to anyone.