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What Is a Heart Attack?
So, Dr Pritchard, let's talk about what a heart attack really is. How would you define a heart attack?
A heart attack is damage to the heart muscle. The muscle cells start to die. And why does that happen? It happens because there's a problem upstream in the blood vessels that give the blood supply to the heart muscle.
So, a heart attack doesn't originally start in the heart. It starts in your blood vessels, the coronary arteries, so to speak. That's why you have to know if you have plaque in your coronary arteries. Even a small amount of plaque matters.