It is recommended that patients with cerebral infarction should not smoke, as cigarettes may cause atherosclerosis, cerebral hypoxia, and increased blood pressure, which will aggravate the symptoms of cerebral infarction. 1. Atherosclerosis: cigarettes contain a large amount of nicotine, which when inhaled into the human body will make the cerebral blood vessels prone to atherosclerosis, thus increasing the risk of recurrent cerebral infarction. 2. Cerebral hypoxia: after lighting cigarettes, carbon monoxide and carbon dioxide will be produced, which will lead to cerebral hypoxia and aggravate the symptoms of cerebral infarction after entering the human body. 3. Increased blood pressure: Smoking may cause sympathetic nerve excitation, leading to increased blood pressure. Increased blood pressure will aggravate the atherosclerosis of cerebral blood vessels and cause cerebral infarction. To summarize, patients with cerebral infarction should not smoke, and it is suggested that patients should quit smoking as soon as possible. Cerebral infarction patients should actively go to the hospital for consultation and treatment.