Drinking more water is beneficial, but we should pay attention to several points: First, drink warm water in the morning on an empty stomach, not too cold, too hot, small slow drink is best for the digestive system. Second, drink water an hour before meals can enhance appetite and improve digestion and absorption. Third, drink some water three hours before going to bed at night, in small amounts, to help sleep, because sometimes waking up late at night is caused by mild dehydration of body tissues. Fourth, drink more water in summer, work in an air-conditioned environment, more need to constantly replenish water to improve the body’s ability to balance the outside world. Fifth, after strenuous physical activity and heavy physical labor, should be a little calm and then drink some cool water, both to lower the body temperature, but also to eliminate fatigue. Six, pregnant women drink at least two liters of water a day, but do not sip, do not drink at mealtime, do not drink ice water. Seven, at least eight glasses of water every day, after eight o’clock in the evening, it is best not to drink a lot of water, so as not to cause edema the next day.