One of the most common things doctors say when we are sick is – more! Drink! Water! In today’s major health forums, “drink more water” has become the cure for all diseases. So drink more water must have benefits? How much water do you really need to drink a day? When is the best time to drink water? Drinking water medical research points out that people need to consume at least 2500 ml of water every day, and every day we eat food already contains a lot of water, minus these, drink 1500 ml of water a day is enough. There are many girls in order to diet and lose weight, excessive drinking water, and no other food intake, which is caused by water poisoning (although the degree of light), the human body is in a state of water-salt balance, once drinking too much water, and salt is not timely replenishment, may appear dizziness, vomiting, weakness, muscle pain in the limbs and other mild water poisoning symptoms. Drinking 7 glasses of water a day is enough. Get up in the morning and drink a glass of water on an empty stomach to help detoxify the kidneys and liver. Half an hour after breakfast and lunch, drink a glass of water to promote digestion, drink a glass of water before dinner to increase the feeling of satiety, 1 to 1.5 hours before going to bed, drink a glass of water to prevent high blood viscosity at night. The remaining 2 glasses of water according to their schedules to arrange, to develop a good habit of drinking water on time every day. In addition, plain water is the most hydrating, do not try to replace plain water with so-called functional drinks or juices.