6 signs of heart attack

Myocardial infarction refers to acute myocardial infarction, usually without the 6 manifestations of acute myocardial infarction precursor this statement, acute myocardial infarction common precursor mainly fatigue, chest discomfort, palpitations, etc.

1, fatigue due to

coronary artery occlusion caused by abnormal blood circulation, oxygen saturation decreased, causing oxygen deficiency in the distal vessels, resulting in fatigue symptoms.

2, chest discomfort

due to reduced blood perfusion in the heart, myocardial damage due to overwork or even local necrosis of hypoxia, resulting in chest discomfort symptoms.

3, palpitations

due to heart own blood supply channels blocked for various reasons, and loss of blood supply myocardial continue to work, oxygen consumption continues to increase, resulting in oxygen and oxygen imbalance, resulting in palpitations symptoms.