Includes bibliographical references and index.

What are humans adapted for? -- Upstanding apes: how we became adapted to being upright -- Much depends on dinner: how walking helped wean us off fruit -- The first hunter-gatherers: how nearly modern bodies evolved in the genus homo -- Energy in the ice age: how we evolved big brains, along with large, fat, slowly growing -- Bodies -- A very cultured species: how modern humans colonized the world with a combination of -- Brains plus brawn -- Progress and mismatch: the consequences-good and bad-of having paleolithic bodies in -- A post-paleolithic world -- Paradise lost? the fruits and follies of becoming farmers -- Modern times, modern bodies: the paradox of human health in the industrial era -- The vicious circle of too much affluence: why and how too much energy makes us -- Sick -- Disuse: how we are losing it by not using it -- The hidden dangers of novelty and comfort: how everyday innovations can damage us -- Survival of the fitter: can evolutionary logic help us better cultivate the human body's -- Future?