Up Next
Back to Show
Human: The World Within
Episode 3 Preview | 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.
Support Provided By
Unlock with PBS Passport
52:30
See how the technology of the brain and nervous system shape our experience of the world.
Unlock with PBS Passport
52:33
Explore the incredible world of human sensation and how it defines our reality.
Unlock with PBS Passport
52:33
Uncover how the human body defends itself in an increasingly dangerous global environment.
Unlock with PBS Passport
52:33
Journey through the factory at the center of our bodies that turns food into energy.
Unlock with PBS Passport
52:30
See the world beneath the human heartbeat that makes our craziest feats possible.
Unlock with PBS Passport
52:30
Learn the story of human reproduction from attraction to a baby’s first breath.