Is it harmful to your health to work in the plateau for a long time? What are the specific problems?

I beg to differ from the previous answer. Every year when I go to work in Tibet, I will go to Ali, which is about 4700 meters above sea level. The shortest is 2 weeks, and the longest is 2 months. If mainlanders live on the plateau without harm to their health, I don't believe it. Tell me about my personal reaction: 1. Lose weight. Lose weight 10 kg in two weeks and 2 10 kg in two months. During my stay in Tibet, I ate very hard and tried to do some muscle strength training as much as I could to keep a certain amount of exercise, but unfortunately, there was no reason or explanation. I saw a haggard man in the photo, yes, just like Ali two months later. If someone cheers and says "Great, I just want to lose weight", I can only cast a pitiful and contemptuous look (why use "her"? Because without exception, women will say such stupid things), I will only tell them that what you have lost is not fat, and you will find that your hard-earned muscles, strength and lines are gone, and stubborn fat still follows you leisurely ... 2. Changes in blood phase and heart rate. Every time I go back to the mainland for a physical examination, the doctor will ask me why the hemoglobin (or I can't remember what hemoglobin is) is so high. I said that I had just returned from working in Ali, and the doctor would shout and say, Don't worry, it will recover slowly ... As for my heart rate, my basic heart rate is between 60 and 65, but after returning from Tibet, my heart rate is between 75 and 80, which will last for a month. Everyone knows the significance of heart rate to people's health, right? Tell a story of 20 14. In the military camp at an altitude of about 3,800 in Aripland County, having dinner with the local garrison, a major took out his mobile phone and cried. We asked what happened. He said that another comrade-in-arms left, only 57 years old. We Tibetan veterans have left one by one these years, and none of them is over 60 years old. After listening to his words, we are all very heavy. Mainlanders working in Tibet have to pay some price. So in my experience, working in Tibet for a long time is inevitable. The result varies from person to person, depending on your luck. Anyway, my leg strength is far worse than before I go to Tibet every year. Supplement: Some people have said such stupid things as "You also do altitude training for free". Please show these people where the plateau training base in our country is, such as the ridge at an altitude of 1888 meters, Xining at an altitude of 2260, and Doba at an altitude of 2366. Do you see that there are training bases in Tibet with an average altitude of more than 3k? The so-called "altitude training" there will kill people.