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Why am I feeling chest pain and shortness of breath?

A heart attack, also known as myocardial infarction, occurs when there is an interruption of blood flow to the heart, leading to one or more areas of the heart muscle not getting oxygen and nutrient supplies. The blockage could caused by a build-up of fatty deposits, including cholesterol and other substances, which form a plaque and narrow the wall of heart arteries or block the small blood vessels entirely.

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