Heading to the mountains? Learn how to avoid altitude sickness and make the most of your high-elevation adventure with these essential tips.

Reports indicate that China recently conducted a live-fire artillery exercise at high altitude using the PCL-181 155mm wheeled self-propelled howitzer. The drill supposedly took place in rugged ...

Pulmonary arterial hypertension (PAH) can be a challenging complication to manage during pregnancy; women with PAH who are pregnant are considered a high-risk population, and they face higher ...

A 14-year-old boy from California remains in a coma after altitude sickness caused him to hallucinate and walk off a 120-foot cliff on Mount Whitney.