If planning to explore Colorado's caves or volcanic formations, build in extra acclimatization time before strenuous ...

When I had to turn back from a trek in the Andes, I decided to find out what happened. A Q&A with mountaineer and specialist ...

Altitude sickness is rare at elevations of less than 8,200 feet but becomes much more common at higher altitudes. Maya Karkalicheva/Moment via Getty Images Equipped with the latest gear and a thirst ...

You’ve just arrived in the Rocky Mountains and are awestruck by the rugged, natural beauty that surrounds you. You’ve mapped out all the trails you plan to hike and are eager to get on with the ...

They call it the “death zone.” It’s a stretch of Mount Everest that’s about 26,000 feet up and is strewn with something like 200 corpses permanently frozen into the landscape —a warning to other ...

Altitude sickness—medically termed Acute Mountain Sickness (AMS)—develops when the body has difficulty adapting to the ...

The snow is flying, your skis are waxed, the mountain beckons — and you feel rotten, like you drank too much last night. You've got altitude sickness. Air at 8,000 feet contains 25 percent less oxygen ...

NEW YORK (Reuters Health) - Otherwise healthy older children and adolescents who visit high-altitude destinations may develop acute mountain sickness in the first few days after they arrive, results ...

There are two main objectives to skiing: Having fun and staying safe. After all, skiing is a physical sport, and nobody wants to spend the bulk of their getaway to the slopes holed up in a cabin in a ...

If you want to learn how to prevent altitude sickness, you need to understand how it can occur. And few people are as familiar with how it can ruin a hunt as Cody Arnold, who worked as a hunting guide ...