When you go up a mountain, there's less oxygen to breathe. This is why elite runners go to Boulder or come from Kenya, and why hikers in the Himalayas get altitude sickness. It's also why some elite ...

Many people are familiar with altitude sickness and the effect it has on the body, but many people often fail to realize that there is a severe form of altitude sickness that even people living at ...

Contributing writer Casey Dean helped with this post. We have peaks on the brain here at NOLS, as one of our own returns from an expedition to the highest point in the world and our Expedition Denali ...

When I told friends I was going to Tibet last spring, almost everyone asked, “What are you doing to prevent altitude sickness?” Not nearly enough, it turned out, given the headaches, insomnia and ...

Hiking and skiing in the mountains may wreak havoc on the blood sugar levels of those with Type 1 diabetes, new research suggests. Exercise offers many benefits -- such as improved heart health, ...