I like some of it, but much of it seems a lot less scientific than what we try to do to computers. Have any of these odd health remedies been empirically tested? Does organic almond butter on celery sticks actually repeatably reduce insomnia? (Also, is its organic-ness a statistically significant factor in its efficacy?) It seems to have an uncomfortably high overlap with some of the natural-medicine/new-age-remedies crowd, in terms of having (sometimes) scientifically plausible arguments for a mechanism, but not much in the way of empirical evidence validating the effect.
You have to understand that the entire premise of the book is that n = 1. There's nothing scientific about it. It's not billed as such, and it is silly to expect it to be so. Sure, Ferriss dips into talking about the science of the body at times, and often tries to couch his forays in it, but the reason it is interesting/amusing is that he tries out some of these ridiculous ideas to see if they actually work.
It should be viewed as a jumping-off point, not an authoritative source.
