Altitude Sickness on Himalayan Treks: Prevention & What Guides Do Altitude Sickness on Himalayan Treks: Prevention, Symptoms and What Guides Actually Do Altitude sickness is the single biggest health risk on any Himalayan trek above 3,000 meters and it’s also the most misunderstood. Trekkers routinely assume fitness protects them from it. It doesn’t. Marathon runners […]
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