According to Chinese medicine, this is because your constitution is yin deficiency, which is generally the kind that you are afraid of cold in winter. There is also the kind that is easy to catch a cold and lasts for a long time.

Modern medicine believes that the metabolic function is slow, which is generally more common in people with puffiness. In other words, the energy stored in your body is slowly converted, and it is a conservative constitution, so it is easy to refuse to consume more energy. It is recommended to put on dry clothes after exercise to keep your body temperature. If you don't continue to exercise, you can take a hot bath and change clothes. Otherwise, it is easy to catch a cold and muscle aches.

Everyone's physique is different. Sometimes we always say that I should be myself. This is not right. If the world were the same, there would be no such world.

(from others' original words, I hope it will help you)