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Fuel
Access to this video is a benefit to members with PBS Passport.
Human: The World Within

Fuel

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.

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Full Episodes
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Episode
52:30
Human: The World Within

React

See how the technology of the brain and nervous system shape our experience of the world.
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Episode
52:33
Human: The World Within

Sense

Explore the incredible world of human sensation and how it defines our reality.
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Episode
52:33
Human: The World Within

Defend

Uncover how the human body defends itself in an increasingly dangerous global environment.
MHJD56E-asset-mezzanine-16x9-J0dKfUd.JPG
Episode
52:30
Human: The World Within

Pulse

See the world beneath the human heartbeat that makes our craziest feats possible.
Daigy6g-asset-mezzanine-16x9-MavCxLU.JPG
Episode
52:30
Human: The World Within

Birth

Learn the story of human reproduction from attraction to a baby’s first breath.
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