Medicine at the top of the world

LYING in an intensive-care ward is a world away from climbing Everest, but a connection will be drawn this spring when 45 scientists and 208 volunteers tackle the mountain to bring back information about oxygen deprivation. The reason they are going is that hypoxia (a lack of oxygen in cells, which can lead to death) is the one thing that links practically all patients in intensive-care wards—and there is no better place to study it than in the thin air of the world's highest mountain.