Drinking a lot of water every day is not good for the body, usually the amount of water such as normal adults daily water intake is in the 2500ml-3500ml, when there is severe dehydration, heat stroke, ionic disorders, can also be supplemented on the basis of more than 500-1000ml of water. Elderly people and infants can slightly reduce the amount of water by 500-1000 ml on top of this amount. If drinking too much water is not good for the body, it will usually cause the following points. 1, the kidney load, such as drinking too much water will make the glomerular filtration rate and tubular reabsorption rate of the compound increase, long time to drink a lot of water will aggravate the burden on the kidneys, resulting in chronic renal insufficiency. 2, it will lead to chronic heart failure, such as the original heart failure based on the patient even more inappropriate to drink a large amount of water every day, otherwise it will cause edema. 3, such as methanol, the patient should not drink a lot of water every day, otherwise it will cause edema. 3, such as hypothyroidism, hypoadrenocorticism, such as drinking a large amount of water will also lead to water intoxication or swelling around the body. Therefore, drinking a lot of water every day does not have the benefit of proper drinking water is best.