Is it suitable for middle-aged and elderly people to travel and live in the mountains? Is the temperature too low?

Not suitable, too low. Most mountains have high altitudes and low air pressure, so the air is thin and the temperature is low. There are also more trees and grass on the mountains, which can absorb and reflect solar radiation, reduce heat absorption, and also lead to very low temperatures. The older the middle-aged and elderly people, the more they age. If you are older, your physical fitness and immunity will be reduced. The humidity in the mountains is high, and you are far away from the hospital. Once an emergency occurs, it will be too late to receive treatment. Therefore, it is not suitable to travel and live in the mountains, and the temperature is also very low.