If a person has pain in the precordial region when he or she is excessively sad and upset, it usually belongs to the following factors: First, the person will experience sympathetic hyperexcitation when he or she is overly stressed and sad, and sympathetic excitation will lead to precordial pain. Second, the patient will also experience activation of the renin-angiotensin-aldosterone system as a result, which can also lead to secondary precordial pain. Then, endocrine metabolic dysregulation can also occur when the body is overstressed or under stress, which can also lead to precordial pain. All of these pains are caused by the constriction and spasm of the coronary arteries, resulting in insufficient blood and oxygen supply. Therefore, patients with a history of coronary heart disease should not be overly stressed, overly stressed, or emotionally sad.