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Scientists who climbed to the summit of Everest and took samples of their very own blood have proven that the human physique can survive with a lot lower oxygen levels than was beforehand thought attainable. They are saying the findings, based mostly on blood taken at increased altitudes than ever before, will help docs to treat patients in intensive care more effectively. The purpose of the Caudwell Xtreme Everest expedition in 2007 was to probe the boundaries of human physiological capabilities - particularly, the exhausting low-oxygen situations at altitude. On their solution to the roof of the world, the medical doctors greater than as soon as rescued other climbers who had succumbed to altitude sickness, the very phenomenon they were attempting to grasp. In a single case, they abandoned vital scientific knowledge to save the life of a 22-year-previous Nepalese climber called Usha Bista. During the expedition, measurements have been taken from practically 200 volunteers who climbed to Everest base camp at 5,300 metres. Fourteen climbers went higher, with eight reaching the summit.
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