Cerebral infarction usually occurs more often at night when sleeping or in the morning when waking up. For cerebral infarction to occur more often at night, it is considered that the patient’s blood flow rate slows down during nighttime sleep, the patient exists atherosclerosis, and due to the slowing down of blood flow rate based on the narrowing of blood vessels, the patient can lead to occlusion of blood vessels and the symptoms of neurological deficits. It is also considered to be due to the presence of blood pressure spikes in the morning, while the morning activity can lead to the dislodgement of arterial emboli, resulting in the patient’s morning stroke. For the onset of cerebral infarction, the patient is advised to consult the hospital immediately. If the patient is in the thrombolytic window and is eligible for thrombolysis, intravenous alteplase or urokinase can be applied. After the acute phase, if the patient has sequelae, rehabilitation should be performed and secondary prevention of cerebrovascular disease should be initiated.