The food we eat in our mouth is digested and absorbed through the digestive process from esophagus to gastrointestinal tract after being chewed by teeth and moistened by saliva. All these links need water to participate, which accelerates the dissolution of nutrients by body fluids.

2. Waste discharge

Residues and wastes left after digestion and absorption of food nutrients should be excreted through sweating, breathing and excretion. These different ways of excretion all need the help of water.

Step 3 balance your body temperature

When the ambient temperature is lower than the body temperature, in order to maintain the body temperature and ensure normal physiological activities, the water in the body will remain in the body because of the reduced evaporation of the narrowed pores; When the ambient temperature is higher than the body temperature, water will be discharged from the body through the expanded capillary breathing hole, which will lower the body temperature. The body ensures its survival function through the dispersion of water.

4. Internal lubrication

Our human body cannot live without the support of boiling water. It is said that if you don't eat or drink, you won't starve to death, but it is impossible to eat or drink only. Lack of water in the body can cause dry and aging skin. The flexible movement of joints in the body is also inseparable from the moisture of boiling water. Our tears, saliva, etc. Everything depends on the supply of water.

Step 5 stay in shape

Drinking water regularly can promote metabolism in the body and make people feel full. People who want to lose weight can drink a cup of boiled water before eating, which can reduce the daily appetite, and the calories in the water are not high, so don't worry about the effect of gaining weight. Moreover, water can promote the metabolism of the human body, especially when drinking cold water, it will consume more calories to keep warm, so drinking more water can strengthen the body.

Extended data:

The best time to drink water:

1, after getting up in the morning

The People's Daily Food Channel once said that the human body loses about 450 ml of water every night, so the human body will be in a state of physiological water shortage in the morning. At this time, it is suggested that you can drink a glass of warm water on an empty stomach to improve the symptoms of dehydration at night and dilute the blood.

2. One hour before meals

After working all morning, people will be in a state of semi-starvation. At this time, drinking water can replenish water to the cells of the whole body, meet the demand for water in the body and promote food absorption.

3. One hour after dinner

It is not recommended that you drink water immediately after meals, especially cold water, which will dilute saliva and gastric juice and weaken the activity of protease, which is not conducive to digestion and absorption. Generally, it is better to drink water about an hour after a meal, and people who are prone to heartburn will drink water two to three hours after a meal.

Step 4 Work intermittently in the afternoon

In the afternoon, it is easy for people to feel physically tired, and working for a long time can also make people feel depressed. At this time, drinking a glass of water can not only replenish water, but also help to clear your mind and improve work efficiency.

References:

Drinking more water has six advantages, and five types of people should drink more water-People's Daily Online.