He says he will experience the same breathing difficulty that Everest climbers encounter at high altitudes.

Only one of the 13 Everest climbers had a normal MRI afterward.

They also criticize modern Everest climbers for lacking imagination and plodding up routes that were climbed decades ago.

Since last spring's Everest climbing season there has been talk of imposing minimum standards for prospective Everest climbers.

Prospective Everest climbers train in a variety of ways.

In winter, the dizzying turquoise ice walls looming above the frozen lake are a favorite testing ground for hopeful Everest climbers from around the world.

All Everest climbers using the southern route have to pass a group of five bodies, amongst them Fischer.

However, most Everest climbers still make the decision to use supplemental oxygen.

Next, we'll look at all of the gear that Everest climbers take with them to understand what it takes to get to the top.

And because Mallory did not take his flashlight, he could not have set out before dawn, as Everest climbers do today.