The common causes of dizziness and chest pain are as follows: 1. Degeneration of the cervical spine leads to deformation of the cervical spine, which compresses the internal carotid artery and external carotid artery, causing insufficient blood supply to the head and dizziness. The cervical spine compresses the nerve roots and abnormal discharge of sensory nerves in the chest causes chest pain. 2. In patients with hypertension and atherosclerosis, aortic coarctation occurs when the blood pressure suddenly rises. The arterial blood flows into the middle of the arterial intima and wall layer, affecting the blood supply to cardiac muscle cells, and affecting the blood supply to brain cells when the sandwich is stripped to the carotid artery.3. Patients with acute myocardial infarction will have severe crushing pain in the chest, decreased pumping function of the heart, and ischemia and hypoxia of brain nerve cells due to occlusion of the coronary arteries. 4. Patients with supraventricular tachycardia, ventricular tachycardia, and ventricular fibrillation irregular heartbeat rhythm, rapid decline in heart pumping function, ischemia and hypoxia of the heart and head. 5. Patients with myocarditis and cardiomyopathy will also have dizziness and chest pain symptoms when heart failure occurs at the end stage of the disease and the systemic oxygen supply is insufficient.