What should I pay attention to when traveling to Lhasa?

I paid attention to this question before I went to Tibet, and I came back two days ago to answer this question. I am a free traveler. A friend of my father's is in Lhasa. I contacted before. For Lhasa, it is the tourist season to arrive at 10 every May. Because the oxygen concentration in Tibet is the highest in August, the most people come at this time. Tickets must be booked in advance. Tickets for Potala Palace are not available unless booked two or three days in advance. About transportation: I chose the direct train, which was recommended by my father's friend. Although the train will provide oxygen, the journey of more than 40 hours will make people very tired, and the first day in Lhasa will be very tired, which is not conducive to alleviating altitude sickness. Although the train will provide oxygen, the air pressure cannot be artificially changed. With the increase of altitude, the pressure will decrease, and you will still feel very uncomfortable. It takes about three hours by plane, and I'm still full of energy. I have oxygen in my body just after I get off the plane, so I won't get altitude sickness immediately. If you are not in a hurry and have patience when you go back, you can choose the train. I saw wild bears, Tibetan antelopes and wild donkeys between Tanggula Mountain and Hoh Xil, and I will also cross Cuona Lake, Qinghai Lake and Yellow River. It's beautiful, but there is no scenery after Qinghai Lake, so you need patience. About altitude sickness: Altitude sickness varies greatly among individuals and has nothing to do with physique. It usually starts five or six hours after arriving in Lhasa and returns to normal three days later. My reaction is that I can't breathe if I walk faster. If you go up the stairs at normal speed, you will get dark at the moment and have a slight headache (mainly swelling of the temples), but you will be fine after sleeping the next day. My mother had a bad headache, indigestion, poor sleep at night and occasional vomiting ... for nearly three days. Therefore, it is best not to go anywhere on the first day in Lhasa, but to wander around the residence. All actions must be slowed down. When you are an 80-year-old man, you'd better not talk or laugh loudly. Don't take oxygen unless you really need it. I have a classmate who came to Tibet to play with me at the same time, but not on the same line. When we exchanged messages on WeChat, he said that he took two breaths and didn't take any more. It's okay. One of his classmates has been taking oxygen since he got off the plane, and as a result, he was hospitalized with pulmonary edema that day. It is dangerous to go to Tibet over 55 years old. About taking a bath: I checked before I went, and I don't want to take a bath for the first three days. First, bathing consumes a lot of energy. Second, I haven't adapted to the local climate, so I'm prone to catch a cold. Once I catch a cold, it will easily lead to pulmonary edema, which will be fatal if I don't do it well. But I took the lead in taking a short bath the day after I arrived in Lhasa. After washing, I keep warm and dry my hair in time. Everything is fine. About medicine: I can bring some rhodiola, ibuprofen sustained-release capsules and American ginseng buccal tablets to relieve altitude sickness. I didn't start eating rhodiola every night until I arrived in Tibet, and I found it useful. Besides, you'd better bring some vitamins, because the fruit in Lhasa is not delicious! Chang! Expensive! I bought eight peaches at a fruit stand on the street in Lhasa and spent them in 88 yuan. . . I regret not bringing vitamins. About clothes: short sleeves, long sleeves and coats with wool thickness or above should be brought. I went in August, which should be the hottest time in Lhasa. Because Lhasa is sunny, it is especially sunny from 3 pm to 6 pm every day, but the temperature in Lhasa depends entirely on the sun. As long as the sun is covered by clouds, the temperature will come down. You can wear short-sleeved or thin long-sleeved shirts when the sun is shining, and you need a coat when there is no sun. If you go to places outside Lhasa, such as Yanghu and Namco, you must bring a coat, which is very useful. About skin care products: Although Tibet is not short of water and rainy in summer, the climate is still very dry. Be sure to pay attention to moisturizing and bring lip balm! ! Sunscreen is basically useless in Lhasa! Wear a black-coated parasol, anti-ultraviolet sunglasses (not only for sun protection, but also to prevent eye burns) and long sleeves, so you won't feel hot. About food: I went to eat pure Tibetan food on the first day of my arrival. I really don't like it. There are basically no green leafy vegetables, most of which are ghee, which is quite delicious. There is a famous restaurant called "Maggie Ami" near Jokhang Temple. It cooks improved Tibetan food, which is quite acceptable, and many people come here. Oh, by the way, yak yogurt is quite delicious, you can try it ~ highland barley 8 beer is refreshing and delicious, with an alcohol content of 2.5. I remember highland barley 8 beer was refreshing and delicious, with an alcohol content of 2.5. I remember the scenic spots: the scenic spots in Lhasa are basically Potala Palace, Jokhang Temple, Jokhang Temple, Norbulingka, Tibet Museum and so on. Climbing the Potala Palace is definitely hard work. There are many steps, and the altitude factor will make you very tired. It is not recommended to go in two days ago. You can go to see the night view of Potala Palace at most at night. It's quite beautiful. Tickets for Potala Palace need to be booked several days in advance, and the booking will be accurate to a certain time point (such as 9:20). This is out of date, don't be late! ! You'd better hire a commentator after you go in (it's a regular commentator at the first place with a commentator's point at the door, 200 RMB, not a local who calls himself a tour guide in the square). You'd better bring some change before you go to the scenic spot. There will be many Tibetans or children begging. I think someone said to bring candy or something. I tried. Children only want money, not sugar. In addition, the locals told me that the turquoise beeswax sold in Lhasa scenic spot is basically fake, so don't buy it. In addition, there are many and strict security checks in Tibet, so you must bring your ID card. About electronic products: forget about cell phones and hair dryers. Be sure to bring a mobile power supply. I experienced a power outage when I lived in Lhasa. Fortunately, mobile power comes in handy. The city of Lhasa, like any second-and third-tier city in China, has everything. If you don't bring any necessities, you can buy them in Lhasa. Don't worry. It's just that the price is higher than Beijing. That's all I think of at present, and I want to show it all.