The paper provides evidence of a new technique "BREATH" and a protocol for treatment - and probably prevention - of acute mountain sickness (AMS). AMS is a well-known problem for many mountaineers. The phenomena can appear at elevations as low as 2500m, with symptoms such as headaches, sleep problems, and abnormal fatigue. The main factor for suffering of mountain illness is the decrease of the ambient partial pressure of oxygen with the altitude; and a natural treatment is an artificial increase of this pressure. The proposed technique to increase the pressure, is easy to operate, and brings rapid and significant improvements of the patient physical condition.
