Angina may be related to heavy physical labor, mood swings and progressive coronary artery stenosis. 1. Heavy physical labor: If angina refuses to take bed rest and still does heavy physical labor every day, resulting in increased oxygen consumption of the heart, when the heart does not get enough blood and oxygen supply, it is easy to cause angina attacks. 2. Large emotional fluctuations: if angina pectoris daily mood swings or long-term depression, resulting in sympathetic nerve excitation, so that blood vessel contraction, which in turn causes poor blood circulation, will trigger angina pectoris. 3. Progressive stenosis of the coronary arteries: if the coronary arteries progressive stenosis, resulting in insufficient blood supply and oxygen supply to the heart muscle cells, will lead to the symptoms of angina pectoris. If angina pectoris is a daily offense, you should go to the hospital in time to receive treatment, so as to avoid adverse consequences.