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The Amazing Human Body
Lew Hollander, Triathlete
As Lew pushes himself, his body demands more oxygen to keep it going.
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54:40
See how experience teaches the brain and body to work together and develop new skills.
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54:40
Discover the miraculous ways the human body works to stay alive and healthy.
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54:40
Learn how humans grow from a single cell to beings of more than 37 trillion cells.