There are many benefits of getting up in the morning and drinking a glass of plain water, as follows: 1, the biggest benefit is to replenish water, the body will consume a lot of water at night when sleeping, and will be in a serious state of dehydration after waking up in the morning. Drinking water in the morning can obviously replenish the body due to metabolic loss of water, to fully replenish the effect of body fluids. 2, can prevent constipation, drinking water after waking up can effectively stimulate the peristalsis of the gastrointestinal tract, to prevent constipation. 3, get up in the morning to drink water, can promote brain wakefulness, water will increase the blood volume in the body, promote blood circulation, will make people belong to the awake state. 4, Improve the heart blood supply, after increasing the body’s blood volume to promote the blood supply capacity of the heart, will allow the heart in a full working condition. 5, get up in the morning to drink plain water, but also to help the gastrointestinal tract to clear the effect of the load, such as the removal of residual stool in the gastrointestinal tract and other situations.