For human survival, water is the most necessary substance after air. In addition to the well-known functions of regulating body temperature and eliminating waste, drinking water has many special functions as follows:
First, sedation. When you are upset and emotionally unstable, slowly drinking a small amount of water has a certain calming effect.
Second, the effect is strong. Water has great solubility and ionization ability, which can make water-soluble substances in the body exist in dissolved state and electrolyte ion state, which is helpful to activate chemical reactions in the human body and increase vitality.
Third, protect your eyes. Drinking water can help your eyes have enough tears. When hot objects are close to the eyes or work in the sun, tears will form a thin layer of water vapor under the action of high temperature. This kind of water vapor plays a role in preventing high temperature conduction, which will reduce the degree of eye injury.
Fourth, reduce fat and lose weight. American medical scientists found through experiments that drinking 8- 12 cups of cold boiled water every day can make obese people lose 0.5 kg per week. Because cold water is easily absorbed by tissues, it can consume heat, shrink blood vessels and slow down the absorption of fat.
Fifth, lubricate the joints. Water is a lubricant for joints and muscles, which has a certain buffering effect on human tissues and organs. In particular, it can reduce joint friction and is beneficial to activities.
Sixth, the beauty effect. Drinking more water at ordinary times can make the tissues and cells of the body have enough water, make the skin tender, moist and shiny, reduce brown fat or wrinkles and delay aging.
Seven, beneficial breathing. People need water to breathe. Proper drinking water can keep the lung tissue moist, and the lung function can be relaxed freely, so that oxygen can be inhaled and carbon dioxide can be discharged smoothly. In addition, water is beneficial to carry nutrients in blood and deliver oxygen to cells, which is beneficial to the whole body.
Eight, relieve constipation. Get up every morning and drink a large glass of light salt and cold water. Because of the lack of physical activity on an empty stomach, salt water is not easily absorbed by the stomach and small intestine, and soon enters the large intestine, which not only stimulates the peristalsis of the intestine, but also dilutes the feces, which is beneficial to defecation.