I’ve become rather fascinated with Everest and the attempt to climb to the top. Not that I’d ever do it (would I?) Here’s a short article about the – quite literal – Death Zone above 8000m
“In such alien conditions, utterly hostile to human life, climbers might face their own mortality. Under the spectre of pure, unadulterated fear, they must realize that they are beyond help as well as beyond helping anyone else.”