New York Times bestselling author and king of �immersion journalism� A.J. Jacobs tackles his most challenging experiment yet: a yearlong mission to radically improve every element of his body and mind�from his brain to his fingertips to his abs.Having lifted his spirit in The Year of Living Biblically and sharpened his mind in The Know-It-All, A.J. Jacobs had one feat left in the self-improvement trinity: to become the healthiest man in the world. He doesn�t just want to lose a couple of pounds, or finish a triathlon, or lower his cholesterol. First, he had to tackle a complicated web of diet and exercise advice, most which is nonsensical, unproven, and contradictory. Second, he had to consult a team of medical advisers. And finally, he had to subject himself, over the course of two years, to a grueling regimen of exercises, a range of diets and nutritional plans, and a brutal array of techniques and practices to improve everything from his hearing to his sleep�all the while testing the patience of his wife.This latest work bursts with hilarity and warmth, all the while testing our culture�s assumptions and obsessions with what makes good health and allowing the listener to reflect on his or her own health, body, and eventual mortality.