A heart attack happens when blood flow to part of the heart is blocked. This blockage is usually
caused by a clot in a coronary artery. Without oxygen-rich blood, the heart muscle can be damaged
or die. Common symptoms include chest pain, shortness of breath, sweating, nausea, and pain
spreading to the arm or jaw. A heart attack is a medical emergency. Immediate treatment is very
important to save life and reduce heart damage.
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