
Episode 3 Preview | Fuel
Preview: Episode 3 | 30sVideo has Closed Captions
Journey through the factory at the center of our bodies that turns food into energy.
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.
Problems with Closed Captions? Closed Captioning Feedback
Problems with Closed Captions? Closed Captioning Feedback

Episode 3 Preview | Fuel
Preview: Episode 3 | 30sVideo has Closed Captions
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.
Problems with Closed Captions? Closed Captioning Feedback
How to Watch Human: The World Within
Human: The World Within is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
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An introduction to the amazing functions of the human body's digestive system. (2m 6s)
The Gut Microbiome is the Hub of Our Immune System
Video has Closed Captions
The Gut microbiome contains bacteria that keep us healthy when well fed and tended to. (2m 23s)
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