hematopoiesis. (physiology). The process by which the cellular elements of the blood are formed.ematopoiesis. (physiology). The process by which the cellular elements of the blood are formed.
This is why Everest climbers typically make several trips up and down the mountain to increasingly high elevation camps to acclimate their bodies to high altitude conditions. Other risks to Everest climbers include frostbite and hypothermia from the extreme temperatures, thrombosis or embolisms caused by thickening of blood in response to high altitude, extreme sunburn, and broken bones from falls.
The overall mortality rate was 1.3 percent, with the rate for climbers (mostly non-natives) at 1.6 percent and the rate for Sherpas, natives of the region and usually acclimatized to high elevations, at 1.1 percent. The annual death rate is remarkably unchanged over the history of climbing on Mount Everest.