36 votes

What do mountaineers eat and drink on the day of an Everest summit?

Hot soup mostly, it does depend on the individual diets of the climbers, not everybody eats the same thing, but most carry hot soup with them. Despite the massive amounts of energy needed to summit ...
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  • 53.1k
34 votes

Can you get permanent brain damage by spending a day at 10,000ft (~3000m) altitude?

TLDR: Yes, it can happen at that altitude, but the odds are extremely low. Long answer High-altitude cerebral edema has happened at lower than 10,000 ft. The condition is seldom seen below 3,000 ...
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29 votes
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What makes certain mountains more dangerous than others?

I personally had a similar sort of a question when I first went through similar kind of stats about these mountains. Getting introduced to these stats is different than totally understanding the ...
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  • 31.5k
20 votes
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What do mountaineers eat and drink on the day of an Everest summit?

In 1996, they seemed to enjoy chocolate bars and candies. From some of the accounts of the infamous 1996 season related by the 2015 movie, apart for the classic soup, tea and fluids, we can consider "...
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  • 316
20 votes

Should one remove their boots in an emergency bivvy situation?

I only see an advantage if your boots are wet: Then I would advise to remove the wet shoes and socks. Maybe you are in the lucky position to have some dry spare socks in your backpack. If not you may ...
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  • 12.1k
18 votes
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During high-altitude lengthy expedition: To shave or not shave?

Apart from the practical advantages mentioned in practicality of beards, there's also some aspects that are special to remote and/or high altitude trekking: Melting snow to obtain water costs a lot ...
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16 votes

What do mountaineers eat and drink on the day of an Everest summit?

Lemon juice and tinned fruit From Tenzing's autobiography Man of Everest We started pitching the highest camp that has ever been made. And it took us almost until it was dark. First we chopped ...
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  • 941
16 votes

Can I use ear plugs while ascending or descending a mountain?

Ear popping is due to the difference in the pressure between the outer and the middle ear. Popping of ear occurs at high altitude to allow for the two pressures to equalize. Now, there's no ...
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  • 7,785
15 votes

What do mountaineers eat and drink on the day of an Everest summit?

It has to go down to all the High-Altitude diets, and not just specific to Mt. Everest. Anywhere above 23,000 feet / 7,000 meters most of the mountaineers lose their appetite to a considerable level. ...
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  • 31.5k
15 votes
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Why do Everest climbers go up, down and up again, instead of acclimatizing by simply staying in a camp longer?

Basically what happens is that the body needs some time to start producing more red blood cells. If you stay at the higher level your body can't cope with the acute lack of oxygen and as a result you ...
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  • 7,971
13 votes
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Is it safe to sleep for more than 16 hrs a day at altitudes above 6000m?

Anecdotally, the only three factors which may cause you problems are: supplies running out losing fitness boredom And these are really only an issue if you are stuck for extended periods of time. ...
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  • 24.4k
13 votes
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Is it normal for a compass to develop an air bubble at high altitude?

I wouldn't call it normal, but it does happen and if the bubble is large enough it will effect your accuracy. In that case you may want to purchase a new one or if possible send it back to the ...
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12 votes
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Altitude sickness when going from sea level to 14,000 ft (4,200m) in a single day

The other answers already gave lots of information about altitude adaption, so I will focus on one certain point: AMS (acute mountain sickness) evolves when staying at high altitudes. It is a ...
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  • 21.6k
12 votes
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Stove/fuel setup for harsh conditions

The standard expedition stove for extreme conditions would be an MSR XGK. You will likely want to bring a pair of them, along with a repair kit, on the assumption that due to the cold or poor quality ...
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  • 8,368
12 votes
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Should one remove their boots in an emergency bivvy situation?

As an anecdote, I did. I unexpectedly bivied overnight during a snowstorm at 14kft in -15F, 50mph winds with a pack, bivy sack and warm clothes. I had dry feet prior, didn't have an issue getting the ...
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11 votes

What are the real dangers of climbing at high altitude?

I'll try and be brief but specific towards answering your question: What exactly happens to your body at high altitude? Disclaimer: A lot of data is from Wiki Pages and definitions from Human Anatomy ...
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11 votes
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Can you pre-identify the risk of severe Altitude sickness?

I could not find evidence of an existing test and there is no widely accepting known cause. The only risk factor commonly noted is having been previously affected by AMS. Other mentioned risk factors ...
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  • 21.6k
11 votes

Is there any evidence that the small canisters (10 liters) of 95% oxygen actually help with altitude sickness?

There is some evidence that increasing the concentration oxygen in the air breathed can help with mild symptoms of altitude sickness. Source here looks at long-term increases in oxygen concentration ...
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  • 1,109
10 votes

Altitude sickness when going from sea level to 14,000 ft (4,200m) in a single day

Here is a clip from this webpage - Acclimatization To Altitude: Preparing for Competition at Altitude How can athletes who live at sea level prepare for a competition at altitude? One ...
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  • 1,325
10 votes

Why is it unsafe to handle metallic equipment with bare hand at higher altitude?

The Problem with metallic equipment and cold temperatures is that your hands are moist, if you touch a very cold metallic surface (or any other smooth surface), your moisture will freeze to the ...
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  • 3,161
10 votes
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Donating blood at higher altitudes and Acclimatization

To answer your first question,"If the situation asks for it, should a mountaineer be donating blood at higher altitude?" I'm assuming you're referring to a life and death situation on the mountain ...
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  • 53.1k
10 votes
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Properly using a Gamow Bag

These are emergency kit - specifically to help those suffering health problems due to altitude. As I understand it they are used within the climber's tent or bivouac, which provides the shelter ...
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  • 24.4k
10 votes
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Why would people descend to sleep while acclimatizing?

What they are doing is following the maxim "climb high, sleep low". Going too fast will cause altitude sickness. Humans have a lower respiration rate while sleeping, which is why they can be okay at ...
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9 votes
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Is there a dose guide for Dexamethasone?

You asked about dosing. My recommendation is to get a professional to figure out the dosing. If you cannot get a professional, then do not carry this as you are potentially introducing as much risk ...
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