Excuse me, what should I pay attention to when drinking water?

Pay attention to the time and method of drinking water. Drink 1 ~ 2 glasses of water every morning, noon and evening. Drink slowly and carefully, you will feel a slight sweetness from it, and the urine will be long, and the stool will be smooth and refreshing.

We often say that people can go without food for three days, but they can't go without water for one day. I usually go to the hospital with headache and brain fever. Finally, besides asking you to take medicine on time, the doctor will definitely tell you to have a good rest and drink more water. This is not only because drugs can only be absorbed by the human body if they are dissolved in water, but also because water itself has the functions of calming, clearing away heat and expelling toxins. China Song Dynasty poet Lu You spent more than 80 years in turmoil and vagrancy. He once wrote a poem: "There are too many things to return to Dan after nine turns, so you can chase after God by taking water." In his view, drinking water can be healthier and longer than alchemy.

From the perspective of drinking water and health, mainstream scientists now believe that good drinking water should meet the following requirements:

1, should be clean, no pathogenic bacteria, heavy metals and harmful chemicals.

2, should contain the right amount of minerals and trace elements.

It should contain fresh and appropriate dissolved oxygen.

4, it should be alkaline, the molecular group of water should be small and the activity should be strong.

At present, drinking water on the market can be roughly divided into three categories, 1 and pure drinking water. 2. Healthy drinking water. 3. Functional drinking water.

Pure drinking water: very clean, especially suitable for mixing wine, seasoning and drinking. Drinking pure drinking water is a good choice in areas with poor water sources and water quality. We just don't advocate that children and the elderly simply drink pure water.

Healthy drinking water: it is better to meet the standard mineral water, and tap water after deep processing (such as precision filtration, activated carbon adsorption, ultraviolet sterilization, etc.). ) and purified water after mineralization and activation can be called healthy drinking water.

Functional drinking water: It is a relatively new kind of drinking water. It requires physical treatment of water on the basis of cleanliness, so that the water mass becomes smaller, the pH value is alkaline, and the redox potential of water decreases, even negative. Functional drinking water has the functions of anti-fatigue, anti-oxidation and blood lipid regulation. It is commendable that these health-care effects are produced without additives (drugs and nutrients). It can be used as general drinking water and is more suitable for middle-aged and elderly people and target people (such as busy work, excessive pressure, overnutrition, etc.).

1 Experts teach you to distinguish the "constitution" of drinking water.

● Pure water: The drinking water passing through the membrane separation and filtration device filters out harmful substances in the water on the one hand, and minerals and trace elements beneficial to the human body on the other.

● Clean water: The drinking water filtered by activated carbon will retain beneficial elements such as minerals while filtering harmful substances, but the filter element must be kept clean and replaced regularly to ensure the "physical" stability of water.

● Mineral water: Drinking water collected from underground water flowing through rocks deep underground and treated to some extent is characterized by containing certain minerals and trace elements, which is beneficial to human metabolism.

Distinguish the advantages and disadvantages of mineral water: the trademark is printed with the ion content in the water. Generally, the combination of high calcium and low sodium is the top grade, and trace elements such as magnesium, potassium and sulfate are also marked as the best.

● Mineral water: Mineral drinks are not mineral water, but artificially added minerals, which are difficult to mix and have unsatisfactory nutritional value.

● Mountain spring water: Mountain spring water is not mineral water. Because there is no relevant national standard, the "Constitution" is unstable.

● Oxygen-rich water: Oxygen-rich water is artificially added with oxygen, and the dissolution of oxygen in water is saturated, not as much as possible.

● Distilled water: After water is boiled to the boiling point of 100℃, some harmful substances with boiling point lower than 100℃ will remain while sterilizing at high temperature. For example, carbon tetrachloride with a boiling point of 70 degrees Celsius cannot be filtered out.

"Safety is not the only criterion. When people choose long-term drinking water, they should pay more attention to whether it is beneficial to human health. " Niu Xiaoying, executive director of the Health Drinking Water Professional Committee of the Chinese Medical Association, believes that "pure water without harmful substances is clean, and long-term drinking is not beneficial to human health, although it is safe." It is more important to judge whether the "constitution" of water is healthy, whether the hardness of water is weak and alkaline, the contents of macro and trace elements and the size of water molecules.

Although experts agree that mineral water is the top of drinking water, there are many questions surrounding mineral water. For example, "why does mineral water taste strange" and "why does it turn red when making tea with mineral water" ... Faced with many questions, Professor Zhu Huigang from the School of Public Health of Fudan University explained that the "physique" of mineral water collected from different water sources is also different.

At present, the national mineral water standards only restrict the access of mineral water production enterprises, and do not make a more detailed evaluation of the "physique" of different underground water sources. For example, in Japan, in addition to national standards, mineral water has two indicators: delicious and healthy, which are used to provide convenience for consumers with different tastes. If some mineral water has a flat health index and a high taste index, while others have a very high health index and the taste index has just passed, it may help guide consumers to drink.

1 experts put forward seven standards for healthy drinking water.

In the first Tianjin Science and Technology Academic Exchange Month in September 2003, relevant experts put forward seven standards for healthy drinking water.

Does not contain toxic, harmful and odorous substances. ※:

Moderate hardness. ※:

The mineral content needed by human body is moderate. ※:

The pH value is slightly alkaline. ※:

The content of dissolved oxygen and carbon dioxide in water is moderate. ※:

The water mass is small. ※:

Water has a strong physiological function. ※.

Expert tips

Adults should drink water at least six times a day.

☆ Children should drink about 1000 ml of water every day.

Do not drink fresh boiled water too hot. Generally, 25℃ to 30℃ is appropriate.

☆ When you have a fever, drinking boiled water can improve your resistance, eliminate sweat and urinate more. In addition to lowering body temperature, toxic substances in the blood can also be eliminated, so scientific drinking water will benefit people endlessly.

1 How to drink water is "scientific"?

Although everyone can drink water, how to drink water is "scientific"?

Drinking water plays an important role in "healthy diet", and the quantity, time and method of drinking water every day are arranged "scientifically" according to the physiological requirements of the human body. This has a lot to do with human health.

People usually drink water according to whether they are thirsty, which is unreasonable. Because thirst means that human body's water is out of balance, human cells have been dehydrated to a certain extent, and the central nervous system sends a signal to replenish water. Drinking water when you are thirsty is equivalent to cracking the soil, which is not conducive to the growth of plants.

Drink water on an empty stomach before meals.

Average daily water consumption of human body (through respiratory tract, urine and skin, etc. ) It's about 2500 ml. In addition to 300 ml of raw water that can be metabolized and oxidized by substances in the body, at least 2200 ml should be supplemented from the diet every day to achieve balance.

How should this 2200 ml of water be scientifically added to the human body?

To put it simply: drink water on an empty stomach before meals, and drink soup and water while eating.

Drinking water on an empty stomach before meals means drinking a certain amount of water about an hour before breakfast, lunch and dinner. Because the digestion of food is completed by the digestive juice of digestive organs. The total amount of digestive juice (saliva, gastric juice, bile, pancreatic juice and intestinal juice) secreted every day is about 8000 ml. Drink water on an empty stomach before meals. Water stays in the stomach for only 2 to 3 minutes, then quickly enters the small intestine and is absorbed into the blood. It can replenish the tissues and cells of the whole body in about an hour to supply the water demand in the body.

Therefore, drinking water before meals can ensure the necessary and sufficient secretion of digestive juice to promote appetite and help digestion and absorption, while not affecting the physiological water content of tissues and cells.

Therefore, it is important to replenish water before meals. Especially before breakfast, the human body loses more water due to long sleep. It is very important to drink more water when you wake up in the morning.

Warm water should be drunk on an empty stomach.

Warm water should be used for drinking on an empty stomach, and light drinks such as fruit juice, light tea and vegetable juice can also be used. Milk, soybean milk, eggs and other supplementary nutrition should not be eaten on an empty stomach, but should be eaten at or after meals. When sweating in hot weather, increase the amount of drinking water; After sweating a lot, you should add some extremely light salt water.

Eating and drinking soup can help dissolve food.

Strong tea and salt water can't replace drinking water on an empty stomach, because strong tea has diuretic effect, which affects the water balance of human body and will cause cell dehydration. The salt is sodium chloride. Because the sodium content in cells is very low, when we drink salt water, it can enter blood and tissues, but not cells. When it is too thick, it will cause dehydration of cells, which is not good for human body.

On the other hand, why should there be soup and water when eating?

Because drinking a certain amount of soup during meals helps to dissolve food, so that when the stomach peristalsis, food and gastric juice are stirred for preliminary digestion, providing more water, which is beneficial to the digestion and absorption of food by the small intestine.

If proper amount of water is not added before and during meals, body fluids will lose water when gastric juice is secreted in large quantities after meals, which is bound to cause thirst. Drinking water again at this time will dilute the gastric juice and affect digestion, and will also increase the burden on the heart and kidneys because of drinking too much water.