Is occasional angina normal?

Angina pectoris is caused by coronary atherosclerosis, heart insufficiency, myocardial ischemia and hypoxia caused by temporary ischemia, is the heart ischemia reflex to the body appear clinical symptoms, if angina pectoris occurs, indicating coronary artery blockage or stenosis, myocardial function is reduced, so even an occasional angina attack, is not a normal

phenomenon

.