How does a heart attack start?

The most common and characteristic symptom of myocardial infarction is pain. In typical cases, it is of a pressing, compressive nature, localized in the left half of the chest, behind the sternum. The pain syndrome may be accompanied by a feeling of heaviness, burning, cold sweat, a feeling of fear of death. Most often, the pain lasts more than 30 minutes, is not stopped by taking nitroglycerin and painkillers, it can proceed in waves, for a long time – then weakening, then again intensifying.

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