By 
Wilfred Manzano
 | 
TED-Ed Original

How blood pressure works

If you lined up all the blood vessels in your body they'd be 60 thousand miles long. And every day they carry the equivalent of over two thousand gallons of blood to the body's tissues. What effect does this pressure have on the walls of the blood vessels? Wilfred Manzano gives the facts on blood pressure.

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health
public health
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