The astonishing national bestseller and hugely entertaining story that completely changed the way we run.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,