Density altitude (DA) reduces aircraft performance; it's pressure altitude corrected for nonstandard temperature and humidity. High temperature, humidity, and elevation all contribute to higher DA.

Cramming into an airplane seat is hard enough, but what really gets people is the creeping pressure in their stomachs as the ...

Spending time at high altitudes may raise your blood pressure, according to a growing body of evidence, and these spikes may be particularly dangerous for people with existing heart disease. In one ...