"It's among the craziest, most breathless things I've ever read, and I've read Klaus Kinski, Dan Brown and Snooki. ... The 4-Hour Body' reads as if The New England Journal of Medicine had been hijacked by the editors of the SkyMall catalog. Some of this junk might actually work, but you're going to be embarrassed doing it or admitting to your friends that you’re trying it. This is a man who, after all, weighs his own feces, likes bloodletting as a life-extension strategy and aims a Philips goLite at his body in place of ingesting caffeine."

--The New York Times' Dwight Garner, on the new self-help book by Timothy Ferriss called The 4-Hour Body