Generally speaking, as long as there are no serious cardiovascular and cerebrovascular diseases and chronic respiratory diseases, it is not a problem to enter Tibet. But there are many things to pay attention to, all of which are details. For example, stop exercising and don't deliberately exercise before entering Tibet. If you keep exercising, you will stop half a month before you go to Tibet. Because the oxygen consumption of the body increases after exercise, the burden on the heart increases, which is easy to cause altitude sickness. Avoid excessive drinking, staying up late and drinking. You should also pay attention to rest and don't drink at the beginning of your stay in Tibet. The first three days mainly adapt to low altitude areas. Don't get too excited, drink plenty of water and get enough sleep. Secondly, we must consider the scenery. You should experience the snow-capped mountains and sacred lakes on the plateau.
Besides taking care of your health, you should also take some clothes with you, because ultraviolet rays in Tibet are still relatively strong. You also need to prepare some medicines, such as cold medicine. Cash should also be properly prepared. Although it is convenient to pay now, you still need cash to visit some areas in Tibet. In Tibet, there is a great temperature difference between day and night. If you go in winter, you need to prepare some warm down jackets.
In addition, you should prepare enough documents. Although some files may not be needed, it is always safer to take them with you. For example, a driver's license is not necessarily used by tourists with a group. It should also be noted that some parts of Tibet need border defense documents. For example, Medog and Everest, these documents can be handled in Shigatse, Tibet, but it will be more troublesome. You'd better deal with it before you go out. Of course, it depends on whether you go to these areas, especially friends in go on road trip.