You can drink water before going to bed, but the amount should not be too large, but also divided into groups. For young people, it is best not to drink too much water before going to bed. Drinking too much water will only increase the burden on the internal organs during sleep and make their metabolism more complicated. May also drink too much water, the body’s metabolism is very fast, resulting in frequent trips to the toilet at night, affecting the quality of sleep. Even the next morning when you get up, your face will be swollen. If you have gastritis, you should not drink water at night, it will be a great burden on the stomach. If the elderly, before bedtime should be appropriate to drink water, but not in excess. Because the elderly rest at night, if you do not drink water, the blood concentration is too high, will increase the risk of disease, is very bad for the body. So it is necessary for the elderly to drink some water at night in moderation, which can reduce the blood concentration.