Hypoxia refers to low oxygen saturation, which is a condition in which the oxygen content of the blood is insufficient and below the normal human standard. There are two main causes of hypoxia: central nervous system disease and bronchopulmonary disease, which can lead to impaired ventilation. Because the degree of hypoxia occurs and lasts for different periods of time, the impact on the body is also different for the human body, mainly because of the three parts of the disease just described. You can go to the hospital for relevant examinations to detect the central nervous system and bronchial or lung diseases, whether there are really some lesions occurring, according to the corresponding symptoms, timely treatment.