Hyperbaric chambers have no special effects on normal people, but it is also important to note that the so-called normal people, in some cases, are not necessarily completely normal. This is because there are many diseases that belong to an invisible state. Because the body has a certain compensatory mechanism, so many times it does not fully manifest itself. When doing hyperbaric chamber, it is also important to have a relatively correct understanding of your condition. For example, there are cases of large pulmonary alveoli that do not produce obvious clinical symptoms. Like young people, they also do not go in for a physical examination to find a large pulmonary alveolus. But often such patients may have other dangers such as pneumothorax as soon as they go into the hyperbaric chamber, and such patients are not suitable for hyperbaric chamber and are not suitable to accompany. So be sure to have a relatively correct understanding of your own body. The so-called normal, not necessarily completely normal, must improve their own examination, do hyperbaric chamber treatment to be safer.