1) Mt. Everest is the highest point in the world at 29,029 feet. About 1,400 people have climbed it but 179 have died trying. 2) Climbing Everest requires specialized equipment like oxygen masks and 5 layers of protective clothing. Younger and more experienced climbers have higher survival rates. 3) Dangers at high altitudes include avalanches, extreme cold, and low oxygen levels. This can cause illnesses like cerebral edema, pulmonary edema, and the Khumbu cough. Immediate descent is needed to treat many of these conditions.