Our current study aims to investigate the alleviative effect exerted by oxygen intake in population at an altitude of 3 658 m.The symptomatic remission,brain function,physiological parameters were all recorded before,15 d after and 30 d after oxygen intake,and15 d after termination.We found that oxygen intake improved the body function both physiologically and metabolically,and 30 min dai- Our current study aims to investigate the alleviative effect exerted by oxygen intake in population at an altitude of 3 658 m. The symptomatic remission, brain function, physiological parameters were all recorded before, 15 d after and 30 d after oxygen intake, and 15 d after termination.We found that oxygen intake improved the body function both physiologically and metabolically, and 30 min dai-