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How does a heart attack damage the heart?

A heart attack is basically a blockage in the blood vessels that supply the heart. These vessels supply blood that contains nutrients and oxygen that keep the heart strong and healthy. When heart cells do not get nutrients and oxygen, they die and cannot regenerate. These dead heart cells are unable to contract and cannot help the heart pump blood to the rest of the body.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.