Chest pain often occurs with overexertion and is a relatively common symptom in clinical practice. The main causes include excessive lung capacity due to overwork, which can stimulate the intercostal nerves or strain on the intercostal muscles, which can reflexively cause pain in the chest. This pain occurs after proper rest, or appropriate massage, microwave physiotherapy, etc., will be able to relieve the pain in the chest. For some elderly people, patients with coronary heart disease and hypertension, if excessive exertion causes sternal pain, it may also be due to insufficient coronary blood supply causing acute coronary syndrome, or heart infarction or other more serious heart disease, which may be life-threatening. Therefore, if you have chest pain during exertion, you must not ignore the symptoms, and you should actively go to the hospital for detailed examination to exclude dangerous diseases and carry out systematic and standardized treatment according to the cause. Coronary heart disease is the most likely cause of chest pain during exertion, while chest pain at home after exertion is less likely to be coronary heart disease.