Climbers using xenon gas reached the summit of Everest in under five days but critics say the shortcut could lead to ...

If you're traveling for a high-altitude hike, here's how to prepare for altitude sickness before you set out on your adventure.

Traveling at high altitude can be hazardous. The information provided here is designed for educational use only and is not a substitute for specific training or experience. Princeton University and ...

Areas above 8,000 metres are known as the "death zone" because thin air and low oxygen levels heighten the risk of altitude sickness. They pre-acclimatised at home using hypoxic tents and special ...