Expedition season on Everest is about to begin. How dangerous is it really to climb Mount Everest? This is one of the most frequently asked questions.
You see, aside from accidents caused by mistakes, exhaustion, sunburn, slips, or falls, as well as those directly linked to weather conditions—storms, snowfall, or strong winds—and avalanches, there is less talk about the effects of oxygen depletion on the body when climbing at high altitudes.
This is exactly what happens on Mount Everest. Take a look at our chart:
- Above 5,000 meters, you may start experiencing headaches and feeling unwell.
- Above 6,000 meters, dehydration, nosebleeds, and hallucinations can occur.
- Above 7,000 meters, you risk severe frostbite on your extremities, as well as on your nose, ears, or lips.
- And beyond 8,000 meters, in the so-called “death zone,” you face extreme exposure to cerebral edema, in addition to all the previous risks.

This is why it’s crucial to be well-prepared, have prior high-altitude mountaineering experience, follow your guides’ instructions, and undergo a thorough medical check-up before embarking on this great adventure. Remember, it’s not just about ensuring your own safety but also avoiding putting others at risk.
Take a look at our pioneer data platform Everdata for further information.
