Altitude sickness symptoms include headache, nausea, dizziness, fatigue, and muscle aches, similar to a hangover.2. High-Altitude Pulmonary Edema (HAPE)- Serious condition involving fluid buildup ...

Zane Wach, 14, was hiking in the Sierra Nevada mountain range in California with his dad when he started to suffer from the ...

A California teen is in a medically induced coma after walking off a 120-foot slope right in front of his terrified father ...

A DAD has revealed the disturbing final words his son said to him before walking off a 120-foot cliff during a mountain hike.

A 14-year-old boy in the US is in a medically induced coma after walking off a 120-foot slope right in front of his father ...

"If any of these symptoms are noted, the traveler should descend down 1,000 or 2,000 feet to help get the body back to normal, and should not attempt to ascend until all symptoms are completely ...

The health update comes after the 14-year-old walked off the edge of Mount Whitney while hoking with his father after ...

A devastating hiking accident on Mount Whitney has left a 14-year-old California boy clinging to life after altitude-induced ...

The father of a teenager who walked off a 120-foot slope has spoken about the terrifying words he uttered shortly before the ...

It is unclear whether the father and son reached the summit, but any travelers reaching altitudes of 8,000 feet — sometimes lower — are susceptible to altitude sickness and symptoms.