How the Heart Works - short clip

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How the Heart Works - short clip

Clip from Don't Die Young  |  Season 1  |  Episode 3  |  BBC Knowledge  |  May 28, 2011

Dr Alice Roberts gives us a real life example of how the heart jumps into action when we are excited or stressed, illustrates wh

Dr Alice Roberts gives us a real life example of how the heart jumps into action when we are excited or stressed, illustrates wh

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