You start to lose cognition. Your decision making starts to become slow. And you start to make bad decisions. In really simple terms, during the accent to the summit in very low oxygen conditions, climbers push their bodies past their limits, running out of energy.
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Blog Menu. Altitude Dangers Everest stands at 29, feet 8, meters above sea level. According to Clement, hypoxia can drastically impair judgment, making it one of the most dangerous Everest risks. In addition to causing treacherous missteps, hypoxia can drive climbers to push harder and go farther than they normally would—but not in a good way.
Another word for it? Summit fever. According to Clement, the cure is setting a strict turnaround time: an ironclad moment when a climber promises to turn around and forego the summit to save their life.
Turnaround times are decided before setting foot on Everest, and should be agreed upon between climbers, guides, and expedition leaders.
But hypoxia, exposure, and inexperience can encourage climbers to ignore the protocol. Medicines include acetazolamide sold under the brand name Diamox , a diuretic that helps prevent a mild edema, and dexamethasone brand name Decadron , a steroid used to treat a brain edema and reverse the symptoms of acute mountain sickness.
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Devotees bathe in sacred river covered in toxic foam. For example, an avalanche in killed at least 12 Sherpa guides , and a series of avalanches in sparked by that year's massive Nepal earthquake caused the deaths of at least 19 people.
This climbing season's 11 deaths so far, though, are not related to one event but to several factors that have caused overcrowding in the most dangerous areas of the route to the summit.
Mountaineers have suggested difficult weather conditions, a lack of experience and the growing commercialization of expeditions are contributing to the danger.
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