1. Overnight meals will change as follows: 1. Overnight meals are harmful to your health, especially vegetables. After overnight, leftovers are prone to produce nitrite, which is a carcinogen. 2. Overnight meals contaminated by bacteria will multiply, which will easily lead to gastroenteritis and even food poisoning. The content of nitrite in overnight meals will greatly increase, and it will become nitrite after entering the stomach, which is harmful to health. 3. After the meal is done, it is actually the possibility of corruption. The longer it takes, the easier it is to be propagated by bacteria. Therefore, after eating a meal all night, there are many possibilities that the meal will go bad. If you eat regularly, you will definitely eat bad food more frequently, so it is unhealthy.

Second, eating cold dishes and cold dishes often leads to gastrointestinal disorders, indigestion, gastritis, gastric ulcer and other digestive tract diseases. I suggest you avoid cold meals, avoid spicy and greasy foods and eat a balanced diet.