Pure oxygen in conditions of increased pressure, saturates blood, plasma, lymph and cerebrospinal fluid well, and these transport it to every, smallest cell of the body. New blood vessels are created (angiogenesis), which affects the efficiency of the nervous system and the reconstruction of axons and the connection of nerve cells. Thanks to these properties, oxygen therapy perfectly supports the treatment of Alzheimer's and Parkinson's diseases, as well as post-stroke recovery. Oxygen supports white blood cells in the fight against anaerobic bacteria, which gives excellent results in the treatment of difficult to heal wounds, ulcers, infections and inflammations. Hyperbaria is an ally in the fight against rheumatism. It also supports convalescence after illnesses, injuries, and X-ray irradiation. Numerous studies have confirmed its effectiveness in counteracting diabetic complications and regulating the proper blood insulin level.