Snoring in sleep is a common phenomenon, mostly considered to be due to relaxation of the muscles in the throat. In general, it occurs mostly in middle-aged and elderly people, and is more common in men. The incidence increases significantly if the patient has an obese body type. If it occurs occasionally, it usually does not affect the patient’s quality of life and does not require special treatment. If snoring is severe, it may cause brain hypoxia. Chronic brain hypoxia may cause memory loss, inattention and thought disorders, and may also cause dementia in patients, which can be treated with ventilator-assisted ventilation if necessary. If the patient has memory impairment, drugs to improve brain metabolism, such as olanzapine, piracetam and cytarabine, can also be applied, as well as vincristine and cerebrolysophosphatidylcholine.