Having had a cerebral infarction and now always having a lack of energy may be due to other causes, not necessarily related to the cerebral infarction. Patients who have had a cerebral infarction usually have a combination of risk factors, including hyperlipidemia, hypertension, hyperglycemia, hyperhomocysteinemia, and so on. If the patient has diabetes mellitus, he/she can have no energy when the blood sugar is too high, and the blood sugar should be monitored and if it is too high, treatment should be given. Metformin and Repaglinide are usually applied orally, and insulin can also be injected subcutaneously if necessary. If the patient has high blood pressure, it may be caused by too high blood pressure or too low blood pressure due to irregular application of blood pressure lowering drugs for a long time. In addition, it may also be caused by the patient’s anxiety or depression after the cerebral infarction, or it may be caused by neurasthenia, sleep disorders, and overexertion.