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High altitude is not fearful

by:Foerstine     2020-04-20
High altitude is not terrible time: 2011 - 11 - Author: 23 source: tent camping tents < p> many friends may have plan to come to the west, to the plateau, to experience a journey of your mind. Because some of them would never to high altitude areas, lead to the lack of a lot of pressure; In the past, also appeared due to lack of sufficient knowledge of plateau adaptation caused dangerous cases. < / p> < p> a, what is the high altitude? < / p> < p> in accordance with internationally accepted standard of altitude: < / p> < p> 1500 - For high altitude 3500 meters, in the height, if there is enough time, most people can get used to; < / p> < p> 3500 - For high altitude 5500 meters, in this level, individual differences determine whether adaptation; < / p> < p> 5500 meters for the high altitude, in this level, your body will be serious decline, some of the damage is irreversible. No one can stay a year at the height. Even if the tibetans and the sherpas, general also live in the region under 5500 meters. < / p> < p> look from actual condition, in the low altitude general feeling at an altitude of 2400 meters below the basic normal, there is no obvious response; The altitude of more than 2400 meters, if there is a reasonable steps and enough time, can gradually adapt to; After more than 5500 meters, no matter how much time can't completely adapt to. < / p> < p> 2, what is the altitude sickness < / p> < p> plateau response refers to people arriving at a certain altitude, the body in order to adapt for the altitude pressure brought about by the poor, less oxygen, air drying, and produce a series of natural physiological reaction. < / p> < p> plateau after symptoms generally appear in more than 2700 meters above sea level. The rapid ( Such as by plane) When you arrive at 3000 meters above, are more likely to happen plateau response. Arrive plateau reaction take place in high altitude - 6 1-12 hours later, a few in Three days later, 3 - in general Within 7 days of recovery, in severe cases recovery time can reach more than 2 weeks. < / p> < p> plateau are: the common manifestations of chest tightness, headache, dizziness, fatigue, anorexia, nausea, shortness of breath, dry cough, vomiting, drowsiness, insomnia, burn, etc. ; Most people will lack of oxygen and lips and nails root blue, some people will due to air dry and rough skin, chapped lips, nose bleeding, etc. ; Can appear serious insensitive, mood restless, excitement, thinking, memory loss, hear, see, smell, taste abnormalities, such as hallucinations, also may be the phenomenon such as edema, shock or cramps. < / p> < p> plateau reaction according to the condition of the individual, symptoms and degree will vary. Some only appear as a single or a few symptoms, some more than others; Some sensitive, strong, and some are lighter, even little. More sensitive person I have ever seen in the 1700 - meter appears mild altitude sickness, also exposed to climb to 6000 m level of reaction is very weak, snow mountain is the mountain is very mixed feelings between people why so big difference. < / p> < p> three, what factors influence the plateau response < / p> < p> in general, the severity of the plateau reaction, the incidence of factors mainly include: < / p> < p> ( A) Altitude < / p> < p> enter the higher the altitude, plateau reaction, the more intense, the bigger the probability for all kinds of mountain sickness. It is reported that the incidence of below 3500 metres accounted for 37% 51%, 3600 - meter - The incidence of 5000 meters up to 50%. < / p> < p> ( 2) Enter the way < / p> < p> enter the rising velocity and amplitude of high altitude, directly affect the strength of the plateau response. Rapid rise above sea level, than the 'ladder' reaction step by step, the prevalence of high altitude sickness. < / p> < p> it is reported that within 3 days from plain at an altitude of 4200 meters, the incidence of acute mountain sickness for 83. 5%; And by 2261 meters through a ladder in 7 - to adapt Within 15 days of arrival of the 4200 meters, incidence of a disease is only 52. 7%. < / p> < p> ( 3) Regional and seasonal < / p> < p> different areas, even if the same or even higher altitude, vegetation cover area is lighter than vegetation sparse region reaction; Similarly, in the same area, air exchange good place where is slower than the circulation ( Such as valley) Strong, better than the night during the day. < / p> < p> from seasons, winter into high altitude is higher than other seasons prevalence. This is because the winter when the temperature is reduced, atmospheric pressure decreases, and further reduce the oxygen content. And cold can stimulate metabolism, increase body oxygen consumption, and easy to complicated with respiratory tract infection. < / p> < p> ( 4) Individual quality < / p> < p> one of hypoxia adaptation, mostly depend on an individual innate quality. More, which involves the quality of the individual factors including race, place of residence, health, gender, age, body, spirit, etc. < / p> < p> in terms of individual quality, in addition to the race, where differences, plateau reaction 'deceives a man not cheated, cheated high fat not deceives thin, cheated not deceives short, wrong move not deceives static', although is not absolute, look from the actual situation according to. Investigate its reason, should with red blood cell volume between individuals, oxygen demand (cod), and the difference of oxygen consumption. < / p> < p> personal state of mind is also very important. Optimists tend to reaction is lighter. Some people don't understand on the plateau environment, and listened to some inappropriate propaganda, psychological pressure is too large, a slight discomfort, tension and fear, and reaction. < / p> < p> in addition, with high altitude, especially people in close time, generally lighter plateau response. < / p>
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