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52:30
See how the technology of the brain and nervous system shape our experience of the world.
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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.
0:30
Explore the incredible world of human sensation and how it defines our reality.
0:30
Uncover how the human body defends itself in an increasingly dangerous global environment.
0:30
Journey through the factory at the center of our bodies that turns food into energy.
0:30
See the world beneath the human heartbeat that makes our craziest feats possible.
1:02
Our sense of smell is shaped by hair follicles in our sinus known as cilia.
2:53
When we lose one of our senses, others fill the void to process the lost information.
