If there is pain in the heart when it is difficult to feel, there are usually physiological factors and pathological reasons. First, for physiological factors, for example, when the patient has excessive emotional fluctuations, mental tension or poor mood, it will trigger an increase in sympathetic nerve tone. This leads to pain in the precordial region. Second, if the patient has pathological factors, such as unstable angina pectoris of coronary heart disease, acute myocarditis, pericarditis, severe arrhythmia, or heart failure, if the patient has excessive mental tension and poor mood, it will cause obvious myocardial ischemia and obvious precordial pain.