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  • NOVA

NOVA | Marathon Challenge | Preview | PBS

Duration: 02:54
Program: NOVA #3414

What does it take for the average person to run one of the world's toughest road races? Find out with NOVA's "Marathon Challenge," a one-hour special that's both a human story and an intriguing scientific exploration of the way our bodies respond to intense exercise demands.

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Post Date: September 12, 2007