If you've ever traveled on an airplane, you know that masks can drop down to supply oxygen in the case of an emergency. Airline oxygen masks have about a 15-minute supply and typically fall when an ...

Hollywood can exaggerate to the point of lunacy, and that's especially true of many military films. But when you see an actor remove his mask while pretending to fly a fighter jet, it may not actually ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NASHVILLE, Tenn. (AP) — A lack of oxygen ...

Outdated studies, misunderstood guidance, and the persistence of a safety claim the author says does not hold up.