The benefits of oxygen are mainly to delay the aging of human organs and tissues, because as we grow older, the metabolic functions of the heart, lungs and other organs and tissues of the human body will decline to varying degrees, and oxygen inhalation can raise the partial pressure of blood oxygen, which can not only play a role in improving individual resistance, but also play a role in preventing chronic diseases. In addition, it can relieve fatigue and improve sleep quality, because when the human body is overly tired or emotionally stressed, the brain may have symptoms of physiological hypoxia, at this time to give oxygen not only can relieve dizziness and dazzling, fatigue, loss of appetite and other adverse reactions, but also can play a role in improving sleep quality and enhancing work efficiency. However, in the process of oxygen therapy, the length of oxygen inhalation should be controlled within one hour as soon as possible, and long-term oxygen therapy should be avoided to avoid the occurrence of oxygen free radicals.