In general, residents who live in a cold environment for a long time can be more resilient  Compared with the south of China, the average winter temperature in the north of China is much lower  However, it is interesting that many residents in the north do not have the cold resistance ability as we think
Quite a number of people from the north come to the south for the winter, but they can hardly bear the cold weather in the south, and even fear the cold far more than the local people
Some northerners think the south is warm, and they often don't do enough to keep warm when they go there for the winter.