Water is one of the most important substances to maintain human life activities. It is appropriate for a person to drink 2500ml~3000ml of water every day. It is advisable to drink 100ml~300ml each time. Drink slowly. The amount of water you drink every day is not constant. You should replenish water according to your physical condition (height and weight, etc.). ), disease factors (diarrhea, vomiting, fever, heart failure, renal insufficiency, etc. ), the weather is cold and warm, whether you exercise, whether you sweat, etc. Maintain the dynamic balance of water in the body.