1.What is pure oxygen saturation therapy Pure oxygen saturation therapy is a treatment method of inhaling pure oxygen under normal pressure, which is an appropriate way of health care treatment for middle-aged and elderly people. Nowadays, after the introduction of MRI, it is found that a large number of middle-aged and elderly people have brain MRI with brain white matter degeneration, which is actually the consequence of long-term chronic brain white matter ischemia and hypoxia. Therefore, regular scientific oxygenation is an extremely important health care tool to prevent or slow down the occurrence and development of cerebral ischemic lesions. Generally, the oxygen concentration inhaled in the ward is only about 30%. Oxygen saturation therapy uses a special device that can inhale 100% oxygen, which can increase the partial pressure of blood oxygen by 6-8 times, and has a very good health care and therapeutic effect, which cannot be replaced by the usual nasal catheter and open mask oxygen. Oxygen saturation therapy is convenient and comfortable, has no side effects, and can be done on demand, which is particularly suitable as a health care treatment. The traditional concept of oxygen therapy is that oxygen is only given when a person’s life is in danger, but in fact, oxygen as a treatment means, we can treat it as a drug. And the latter will not produce toxic side effects and dependence, if you adhere to the daily oxygen 15-30 minutes, on ischemic cardiovascular and cerebrovascular disease with health care and treatment, and even better than taking vasodilator drugs. 2. What conditions are suitable for pure oxygen saturation therapy ● Coronary heart disease, chronic myocardial ischemia ● Cerebral arteriosclerosis, cerebral blood supply deficiency, cerebral white matter ischemia, cerebrovascular disease ● Patients with “three highs” (hypertension, hyperlipidemia, hyperglycemia) ● Fatigue syndrome, including brain fatigue ● Oxygen therapy for students before examinations ● Sub-healthy state ● Health care oxygen therapy for middle-aged and elderly people