There are two other severe forms of altitude illness, High Altitude Cerebral Edema (HACE) and High Altitude Pulmonary Edema (HAPE). Both of these happen less frequently, especially to those who are ...

Travelers trying to conquer more steep heights, such as 14,000 feet, are more at risk for developing one of the two forms of serious altitude sickness. High altitude pulmonary edema, or HAPE, is a ...