During the winter months, Southern California-based NASA aerospace engineer Frank Tai and his wife get their mountain-town fix through their condo in Breckenridge. For years the fix came with a cost: ...

Invasive mechanical ventilation in critically ill adults involves adjusting the fraction of inspired oxygen to maintain arterial oxygen saturation. The oxygen-saturation target that will optimize ...

Last October, my daughter Elizabeth and I stood at Londorossi gate (elevation 2,250 metres), the western entrance to Mount Kilimanjaro National Park in Tanzania, ready to begin the nine-day Lemosho ...

Current aviation regulations and common pilot knowledge provide insufficient guidance on the specific *amount* of oxygen required for flight, leaving pilots vulnerable to hypoxia at altitudes much ...

High-altitude exposure, characterized by hypobaric hypoxia, cold, and intense radiation, profoundly remodels the gut ...