An epic adventure that began with one simple question: Why does my foot hurt?Isolated by Mexico's deadly Copper Canyons, the blissful Tarahumara Indians have honed the ability to run hundreds of miles without rest or injury. In a riveting narrative, award-winning journalist and often-injured runner Christopher McDougall sets out to discover their secrets. In the process, he takes his readers from science labs at Harvard to the sun-baked valleys and freezing peaks across North America, where ever-growing numbers of ultra-runners are pushing their bodies to the limit, and, finally, to a climactic race in the Copper Canyons that pits America's best ultra-runners against the tribe. McDougall's incredible story will not only engage your mind but inspire your body when you realize that you, indeed all of us, were born to run.From the Trade Paperback edition.