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Everest


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             Just because you can pay the 30,000 to 65,000 dollars to join an expedition doesn't mean that you still should attempt it especially without previous experience on any 8,000-meter peaks. This is the reason that most climbers fail or end up dying. .
             One of the hardest things that climber have to deal with is the serious lack of oxygen on the mountain. At altitude, the density of oxygen is greatly decreased and the body tries to compensate by breathing harder and deeper, but this results in a "wash-out- of much needed carbon dioxide that keeps the acidity of the blood normal. And the result can be everything from light-headedness, fainting and spasms to even death. The heart beats faster and pumps more blood into the small capillaries in tissues and they become more permeable causing fluid to leak into the cells and concentrating the red blood cell content, which increases the blood's oxygen content. The changes are called "struggle responses- and protect the body from oxygen deprivation, or "hypoxia-, but can't be sustained for long because of life threatening symptoms. The lack of oxygen releases an enzyme called erythropoietin, which stimulates new red blood cell growth in the bone marrow, increasing the bloods oxygen-carrying capacity. Most body functions are slowed in order to survive. If you go too high too fast, the "struggle responses- may not be adequate enough to acclimatize the body, and Acute Mountain Sickness kicks in. Acute Mountain Sickness can turn into the more serious High-Altitude Pulmonary Edema. HAPE is when the normal amount of fluid that enters the lungs is no longer absorbed and instead, collects, causing an obstruction of oxygen flow. A more serious condition, but more rare, is High-Altitude Cerebral Edema. HACE is when the victim has trouble walking or using the hands; called ataxia, this condition is an early sign of altitude caused brain-disturbance. All of these conditions cause impairment of judgement and perception when climbers need them the most.


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