That’s a little scary for anyone venturing to these sorts of high ... warning signs that signal the difference between run-on-the-hill acute mountain sickness and more severe forms of altitude ...

This type of breathing is not considered abnormal at high altitudes. However, if it occurs first during an illness (other than altitude illnesses) or after an injury (particularly a head injury) it ...

New data identifies two key risk factors for high-altitude pulmonary edema, a leading cause of death on the mountain.