Increased sympathetic excitability may be due to exercise, emotional excitement and other physiological factors and does not require medication. If it is caused by anemia, hyperthyroidism and other conditions, it is also necessary to follow the doctor’s instructions to use iron dextrose, methimazole and other drugs to treat. 1. Physiological factors: usually patients after exercise and emotional excitement, etc., may lead to increased sympathetic excitability, is a normal physiological phenomenon, generally do not need medication. 2. Anemia: should improve the examination to clarify the cause of the disease, such as iron deficiency anemia, patients need to follow the medical advice to use ferrous gluconate, iron dextrose, ferrous fumarate and other iron agents for treatment. While patients with renal anemia can be treated with erythropoietin, in the case of chronic aplastic anemia, androgen therapy is required. Some patients may also be treated with immunosuppressants such as cyclophosphamide and cyclosporine. 3. Hyperthyroidism: Usually patients can follow the doctor’s instructions to use methimazole, propylthiouracil and other anti-thyroid drugs. Some patients may also be treated with beta-blockers such as iodine or propranolol. It is recommended that when patients experience increased sympathetic excitability, physiological factors should be ruled out first, and if it is caused by disease, it should be treated according to the cause of the disease.