For the amount of water to get up in the morning, there is no clear unified requirements, generally a small amount of water can be, about 200ml is more appropriate. The human body after a night’s sleep, due to breathing, urination and other reasons, the body loses more water, so get up in the morning need to drink a moderate amount of water, help to supplement water for the body, relieve the viscosity of the blood, promote gastrointestinal motility. General small amount of water can be, about 200ml is more appropriate, should not drink too much water, so as not to cause a sense of satiety, affecting breakfast eating. It should be noted that the morning fasting should drink warm water, and drinking speed should not be too fast. In addition, for people with renal metabolic disorders, it is recommended to follow the medical advice to reduce the amount of water.