Always wanting to sleep after a cerebral infarction indicates that the patient’s mental state has not improved, but is in a state where the disease may be aggravated, the blood supply to the brain has not improved, and there is still a lack of oxygen. Most of the patients with cerebral infarction are elderly people who will be bedridden after cerebral infarction, and if they have lung diseases, bedridden and lung infections will cause the blood oxygen content of the arteries to decrease, which will also make the brain hypoxic. In the clinic, timely judgment should be made and targeted treatment should be given.