More than 300 people have died climbing Mount Everest. At 26 000 feet, the body starts to die, cell by cell, of oxygen deprivation. | BISouthAfrica
that blood samples taken from four mountaineers in the death zone revealed that the climbers were surviving on just one-quarter of the oxygen they needed at sea level.The air has so little oxygen that even with supplementary air tanks, it can feel like"running on a treadmill and breathing through a straw,"A lack of oxygen results in myriad health risks.
fatigue, a feeling of impending suffocation at night, weakness, and a persistent cough that brings up white, watery, or frothy fluid. Sometimes the coughing is so severe it can crack or separate ribs.In the death zone, your brain can start to swell, which can lead to nausea and a form of psychosis Nausea and vomiting from altitude-related illnesses, including HAPE and HACE, also cause a decrease in appetite. The glare from the endless snow and ice can cause snow blindness — temporary vision loss, or burst blood vessels in your eyes.
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