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Altitude sickness, the mildest form being acute mountain sickness (AMS), is a harmful effect of high altitude, caused by rapid exposure to low amounts of oxygen at high elevation. [ 1 ] [ 2 ] [ 3 ] People's bodies can respond to high altitude in different ways.
Very high altitude = 3,500–5,500 metres (11,500–18,000 ft) Extreme altitude = above 5,500 metres (18,000 ft) Travel to each of these altitude regions can lead to medical problems, from the mild symptoms of acute mountain sickness to the potentially fatal high-altitude pulmonary edema and high-altitude cerebral edema .
Despite a lack of general agreement in the medical community about the prevalence of altitude-related conditions, some visitors to the highlands may experience symptoms. The lower atmospheric pressure of the Sierra can cause difficulty in breathing, nausea, and dizziness, but these conditions are typically not of long duration and require a ...
High-altitude pulmonary edema (HAPE) is a life-threatening form of non-cardiogenic pulmonary edema that occurs in otherwise healthy people at altitudes typically above 2,500 meters (8,200 ft). [2] HAPE is a severe presentation of altitude sickness. Cases have also been reported between 1,500–2,500 metres or 4,900–8,200 feet in people who ...
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In the case of altitude sickness, where hypoxia develops gradually, the symptoms include fatigue, numbness / tingling of extremities, nausea, and cerebral hypoxia. [17] [18] These symptoms are often difficult to identify, but early detection of symptoms can be critical. [19]
If you measure altitude above mean sea level, then the 29,032-foot (8,849-meter) Mount Everest, which straddles the border between Tibet and Nepal, is clearly the world’s highest.
More mysterious symptoms started showing up—and I finally hit my breaking point. After about three months, I got a rash all over my legs. I had horrible cramping in my stomach, was exhausted all ...