When the weather is cold, I will have a stomachache and diarrhea.

Because the human body has temperature-sensing cells, it will feel the temperature and then transmit it to the brain center, telling you whether it is cold or hot, so that you can respond accordingly to increase or decrease clothes. At the same time, the internal organs of the human body will also feel the change of temperature and make some corresponding reactions, such as spasm of gastrointestinal smooth muscle. Some people are sensitive to temperature, gastrointestinal smooth muscle spasm is serious, and they will feel stomachache, varying degrees, and even diarrhea. Pay attention to wearing clothes to keep warm.