If you’re planning a getaway at one of these popular high-altitude destinations—from Banff to the Colorado Rocky ...

During one ascent, Purja develops symptoms of high-altitude cerebral oedema (brain swelling), a dangerous form of altitude ...

At last, you’ve arrived in Cuzco, Peru — you’re ready for your dream trek to Machu Picchu. There’s just one problem: You can barely catch your breath, your stomach is churning and, in the morning, ...

The term “high-altitude illness” is used to describe the cerebral and pulmonary syndromes that can develop in unacclimatized persons shortly after ascent to high altitude. Acute mountain sickness and ...

Millions of people every year travel to high altitudes for a wide range of reasons including leisure, sports, and long-term relocation. In fact, the number of people traveling to high altitudes is ...

1 Center for Integrative Human Physiology, Institute of Physiology, University of Zürich, Zürich, Switzerland 2 Department of Physiology, Institute of Sport Sciences, University of Lausanne, Lausanne, ...

Ever dash through the airport in Salt Lake City? Worse yet, have you ever run a 5K in Denver? Even if you live at high altitude, you’re bound to be more winded and considerably slower than you would ...

Nothing Is Impossible," elite mountaineer Nirmal Purja races up the world's highest summits at extraordinary speed. But even he isn't immune to altitude.