The causes of sleepiness are: cerebrovascular diseases, such as massive cerebral infarction, cerebral hemorrhage, subarachnoid hemorrhage; Intracranial infection, such as viral encephalitis, purulent meningoencephalitis, etc; Demyelinating diseases of central nervous system, such as acute disseminated encephalomyelitis, central pontine myelinolysis, etc; Cerebral ischemia and hypoxia diseases, such as carbon monoxide poisoning, can cause lethargy. Sleepiness is the early manifestation of consciousness disorder. The patient's sleep time is excessively prolonged, but he can be woken up. After waking up, he can reluctantly cooperate with the examination and answer simple questions. After stopping the stimulation, the patient continues to sleep. The above popular science content is for reference only.
