Rose can't help but ask, do healthy people also need oxygen? Can "oxygen therapy" really strengthen the body and prevent diseases? The doctor's answer is that "oxygen therapy" is only effective for people who lack oxygen, and there is no special benefit for healthy people to take oxygen.
As the name implies, oxygen therapy is to improve the physiological and biochemical environment of human body and promote the virtuous cycle of metabolic process through oxygen supply, so as to achieve the purpose of treating diseases, relieving symptoms, promoting rehabilitation, preventing diseases and improving health. Hypoxia and pathogenicity are mutually causal. Illness can lead to hypoxia, and hypoxia can cause disease. Accordingly, the doctor suggested that health should not take oxygen, and oxygen supplementation should be symptomatic.
Professor Bai, director of the respiratory department of Zhongshan Hospital affiliated to Fudan University in Shanghai, pointed out that oxygen in the air accounts for about 2 1%. For healthy people, the oxygen in the air can fully meet the needs of the body. However, insufficient oxygen intake caused by poor breathing will lead to hypoxia in the body; In addition, problems with the heart and blood vessels can lead to insufficient blood supply and hypoxia. At this time, it is necessary to relieve symptoms and promote rehabilitation through "oxygen therapy".
The common symptoms of hypoxia are dizziness and headache. Doctors suggest that whether to take oxygen depends on two indicators: first, draw blood to check the arterial oxygen partial pressure. Under normal circumstances, the arterial oxygen partial pressure of adults is 80~ 100mmhg. If the arterial oxygen partial pressure is lower than 60mmhg, it has reached the level of respiratory failure, and oxygen needs to be inhaled in time. Another index is to measure arterial oxygen saturation with instruments. If the oxygen saturation is lower than 90%, oxygen therapy is needed.
"In a word, healthy people don't need oxygen," the expert said. For those middle-aged and elderly people who take oxygen for a few minutes every day for health care, doctors think that there is no health care effect, but they may be infected with other diseases because public oxygen masks or oxygen inhalation catheters are not disinfected. Professor Bai believes that normal people can completely increase their oxygen consumption through their own compensation mechanism and supplementary activities. Only when the patient and the body can't compensate, oxygen is needed to relieve the symptoms of hypoxia.