1, don't drink water when you are thirsty. When you are thirsty, it means that the water in your body has lost its balance and the cells have begun to dehydrate. At this time, it is too late to drink water.

2, do not drink too much water when thirsty, so drinking water will make the stomach difficult to adapt, causing adverse consequences. The predecessors advocated: "Don't drink too much if you don't want to be extremely thirsty", which is a scientific method to prevent thirst and choose to drink water.

3. It is not advisable to drink water before or during meals, because drinking water before or during meals will dilute the digestive juice, which is not conducive to the digestion and absorption of food and is not good for the body for a long time.

Drinking some water before getting up in the morning can replenish the water consumed overnight, reduce the blood concentration, promote blood circulation and maintain the normal level of body fluids.