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The Science of Marathon Running

I ran one… FOR SCIENCE! Don’t miss our next video! SUBSCRIBE! ▻▻ http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ So maybe we can’t outrun cheetahs or antelope,…

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Originally posted 2018-04-30 22:55:43.

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