Why is hot weather easy to cause enteritis?

First of all, we must make it clear that almost all diseases occur when the human body's resistance is low. In hot weather, people's sleep quality is not high and their appetite is poor. Going in and out of the air-conditioned room is cold and hot, which will reduce the body's resistance. Secondly, acute gastroenteritis in summer is almost always caused by "improper diet". There are two main aspects: (1) The temperature is high in summer, and bacteria and microorganisms can easily multiply on food. Eating bad food can cause gastrointestinal infection, which in turn leads to inflammation. It will cause abdominal pain, nausea, vomiting, loose stool, even watery stools, and some will have a fever. (2) It is hot and cold, so many people choose to drink cold drinks. Although cold drinks are very comfortable to drink, they have many disadvantages to the body. Too cold food will constrict the blood vessels in the gastrointestinal tract, reduce the blood flow in the gastrointestinal tract, reduce the defense ability, stimulate the gastrointestinal mucosa, cause gastrointestinal cramps, and lead to abdominal cramps and diarrhea. "Low resistance+improper diet" is the fundamental reason for the high incidence of acute gastroenteritis in summer.