6: 00 The first glass of water in a day after a whole night's sleep, the body has begun to lack water. Drinking a glass of water (about 250 ml) after getting up can not only replenish the water consumed by the body, but also help detoxify the kidneys and liver. As for what water to drink, experts suggest that it is best to drink boiled water. The water temperature is also particular. It is best to synchronize with room temperature in summer and drink warm water in winter. Too cold and overheated water is not suitable for drinking in the morning. Drinking a second glass of water from early morning to 9: 00 at work is very tight and the body is easy to dehydrate. It is best to drink boiled water at this time. 1 1: 00 Drink the third glass of water. Drinking a glass of water or juice at this time helps to replenish body fluids. /kloc-drink the fourth glass of water at 0/8: 00. It is recommended not to drink water after 9 pm.