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Fuel

52:33

Defend

52:33

Sense

52:33

React

52:30

Proprioception - The Sixth Sense

2:46

Engineering Lost Function Inside the Body

2:45

The Human Body's Nervous System

1:22

The Human Body's Five Senses

1:31

Our Sense of Smell

1:02

The Adaptive Quality of Our Senses

2:53

The Immune System

2:06

The Digestive System

2:06

Human: The World Within

Pulse

Dive into the world of an ice climber, a bus driver, a woman in labor and a senior dance club to show how the human heart and the circulatory system power our physical and emotional lives and create the pulsing rhythm of our world.

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Full Episodes

Human: The World Within

React

See how the technology of the brain and nervous system shape our experience of the world.

Human: The World Within

Sense

Explore the incredible world of human sensation and how it defines our reality.

Human: The World Within

Defend

Uncover how the human body defends itself in an increasingly dangerous global environment.

Human: The World Within

Fuel

Journey through the factory at the center of our bodies that turns food into energy.

Human: The World Within

Birth

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