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Can you have a heart attack and not know it?

A heart attack does not always occur with clear warning signs or obvious symptoms. This is called a silent heart attack (silent ischemia). A silent heart attack can be just as dangerous or even more life-threatening because, although the process is similar, attempts to seek treatment would most likely not be done. Anyone who believes they have experienced a silent heart attack should be seen by a medical professional as soon as possible.

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