Introduction In 2007, an unusual scientific expedition travelled to Mount Everest. The objective was not simply to reach the world’s highest summit. Mount Everest was being used as a vast natural laboratory in which healthy human beings could be studied while progressively exposed to increasingly severe hypoxia. The Caudwell Xtreme Everest (CXE) expedition systematically studied … Continue reading Everest as an Intensive Care Laboratory: What Caudwell Xtreme Everest Taught Us About Human Survival