What happens during a heart attack?

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Krishna Sudhir |

TED-Ed

• February 2017

Approximately seven million people around the world die from heart attacks every year. And cardiovascular disease, which causes heart attacks and other problems like strokes, is the world's leading killer. So what causes a heart attack? Krishna Sudhir examines the leading causes and treatments of this deadly disease. [Directed by Chadwick Whitehead, narrated by Addison Anderson, music by Dreikelvin Media & Sound].