
Blood Vessels and Circulatory Movement
Clip: Episode 2 | 2m 8sVideo has Closed Captions
Human bodies are designed to move in order to circulate blood and nutrients to every cell.
Staying active and on the move is crucial to our health for a lot of reasons. But it's especially important for the circulatory system to function properly. In fact, our bodies are actually designed so that blood circulation depends on us being in semi-constant motion.
Problems with Closed Captions? Closed Captioning Feedback
Problems with Closed Captions? Closed Captioning Feedback

Blood Vessels and Circulatory Movement
Clip: Episode 2 | 2m 8sVideo has Closed Captions
Staying active and on the move is crucial to our health for a lot of reasons. But it's especially important for the circulatory system to function properly. In fact, our bodies are actually designed so that blood circulation depends on us being in semi-constant motion.
Problems with Closed Captions? Closed Captioning Feedback
How to Watch Human: The World Within
Human: The World Within is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
Buy Now
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipVideo has Closed Captions
Preview: Ep2 | 30s | See the world beneath the human heartbeat that makes our craziest feats possible. (30s)
Functions of the Heart and Lungs
Video has Closed Captions
Clip: Ep2 | 1m 25s | Our heart and lungs circulate oxygen throughout our blood vessels to keep cells alive. (1m 25s)
The Science Behind the Pulse in Our Bodies
Video has Closed Captions
Clip: Ep2 | 2m 39s | Human life depends on our bodies ability to process oxygen to keep our cells alive. (2m 39s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipSupport for PBS provided by: