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.
Plan ahead: If you want to climb Everest, you're going to have to be in fantastic physical shape. Fitness won't fend off altitude sickness, but will enable more oxygen to reach your body. Basic fitness training should start well in advance with plenty of cardiovascular training in the 12-month run-up to the climb.