Pushing the Human Body to New Extremes

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Marathons, triathlons, and speed ascents. I hear about these events and one thought pops into my head: There's no way I could do that (“crazy” is a close second).

Radiolab, a science show on WNYC in New York, recently took a look at just how far the body can go. Their new episode, “Limits” (embedded below) explores the chemistry behind feats of endurance. They begin with a story of physical collapse during Ironman Kona (video above), but the majority of the program focuses on the Race Across America. Their guide to the RAAM? Outside contributing editor Daniel Coyle.

— Jonah Ogles

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