What are the symptoms of brain hypoxia?

Brain hypoxia has acute and chronic, acute hypoxia such as drowning, asphyxia caused by brain hypoxia, there will be life-threatening. Common chronic cerebral hypoxia such as arteriosclerosis, hypertension, anemia and other chronic diseases, long-term, persistent lack of oxygen supply to the brain, affecting the metabolism of brain cells, will show a series of clinical symptoms and signs, such as dizziness, headache, memory impairment, sleep disorders, personality changes, cognitive disorders, motor, sensory abnormalities and other clinical symptoms. In short, carbon dioxide can not be discharged in time after brain hypoxia, oxygen deficiency affects the normal metabolism of brain cells, so that the function of brain cells declines, resulting in a series of clinical symptoms of brain function damage, which is a very complex syndrome.