Human: The World Within

Fuel

Episode 3 | 52m 33s | Video has closed captioning.

Through the worlds of a religious faster, an ultra-marathon runner, a farmer and a young girl beating allergies, go deep into the world of the human gut, which processes the fuel our bodies need to keep going.

Aired: 05/12/21

Expires: 05/11/31

Rating: TV-PG

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Problems Playing Video? | Closed Captioning