Myocardial infarction is a critical symptom of coronary heart disease, which is usually based on frequent and aggravated angina pectoris, and there are cases of sudden myocardial infarction with or without angina pectoris (this situation is the most dangerous and often leads to sudden death due to unsuspecting).
Pay attention to light diet, reasonable exercise, don't overwork, pay attention to rest, and avoid alcohol and tobacco.
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