Healthy drinking water knowledge sharing

Water is the source of life, most of the content in the human body is water, with the increase of age, the human body water content gradually decreases。The water content can reach the embryonic stage98%, the average newborn is80%，到10-16After the age, gradually reach the adult level。60The water content of males over the age is50%, female appointment45%。Therefore, the quality of drinking water has a direct and far-reaching impact on human health。But water that looks the same may not actually be the same。
　　Types of drinking water and acid alkalinity

　　Water is divided into acid and base。The pH of water is determined by the minerals dissolved in the water。Natural water often contains potassium, calcium, sodium, magnesium, metasilicic acid and other mineral elements, mostly weakly alkaline,pHValue greater than7。Deionized water often does not contain these important mineral elements and is often acidic,pHValue less than7。

　　Purified water can effectively remove the cations in the water, so the source of water requirements are low, micro-polluted water and even polluted water can be used as a source water, while removing pollutants, the cations are also removed。Drinking natural water, on the contrary, has high requirements for water sources。

　　Natural water from unpolluted springs, Wells, reservoirs, lakes or mountain glaciers and other natural high-quality water sources, after a series of filtration process purification, there are a variety of natural mineral elements in the water, the water quality is natural weakly alkaline, is suitable for human long-term drinking water。

　　Purified water generally takes urban tap water as the source of water, and removes all impurities in the water through reverse osmosis and other processes, but at the same time, it also removes natural mineral elements such as potassium, calcium, sodium and magnesium required by the human body, and the water quality is generally acidic。

　　As we all know, the main component of human cells is water, what kind of state does the water in our body exist in？

　　The state of water in the human body is not“Purified water”

　　The physiological function of water must be familiar to everyone。When food enters the mouth and intestines, it is necessary to rely on digestive fluids to help digest food, and these digestive fluids are high in water content90%以上。The metabolic chemical reactions of the human body are carried out in water, water is not only the medium of biochemical reactions, but also participates in oxidation, reduction, synthesis, decomposition and other chemical reactions in the body。Due to its high mobility, water acts as a transport vehicle for various nutrients in the body。At the same time, water is an important substance to regulate body temperature, participating in three steps: the use of oxygen for oxidative metabolism, release energy, and then through the evaporation of water can emit more energy to avoid temperature rise。The lubrication and moisturizing function of water can avoid tissue and organ wear and keep the skin soft。Dilution and detoxification functions help prevent many diseases such as high blood pressure, diabetes, and allergies。In short, people's various metabolic and physiological activities are inseparable from water。

　　All substances that are transported or biotransformed within the organs of the human body are dissolved in water。When the body takes in nutrients from the outside, in the human organs, water always mixes different electrolytes (such as potassium ions and sodium ions)。

　　So, the state of water in the human body is not“Purified water”It is a saline mixture suitable for transporting electrolytes。Most of this mixture absorbs solid nutrients from the body, and a small portion is used to transport beverages and drinking water。
　　

Drinking pure water for a long time will lead to mineral precipitation in the human body

　　The World Health Organization's "Nutrition in Drinking Water" collection points out that the intake of pure water not only can not help the body obtain minerals, but increase the body's sodium, potassium, calcium, magnesium and other minerals。Long-term drinking water lacking in mineral elements will bring the following risks: directly affect the intestinal mucosa, metabolism and mineral homeostatic balance and other human functions;Affects calcium and magnesium intake;Affecting the intake of other essential elements and trace elements;Increased exposure to toxic metals in the diet;Increased risk of cardiovascular and cerebrovascular disease。

　　The German Nutrition Society also pointed out that only drinking pure water is related to malnutrition caused by the lack of electrolytes in the human body。For health reasons, regular drinking of pure water is not recommended。Pure water can not replenish the electrolytes lost in the human body in time, but also dilute the concentrated electrolytes in the body。The body loses the state of electrolyte dynamic balance。 After such water enters the human body, it will interfere with the transmission and distribution of water between cells in the body, so that the function of vital organs is affected。

　　Experts remind: long-term drinking pure water is not conducive to human health

　　People experience fatigue, weakness and headaches, muscle cramps or irregular heartbeats。The above symptoms may be caused by drinking a lot of pure water every day and lack of necessary electrolytes in the body。

　　China Standards Press published "healthy drinking water guide" pointed out。European countries from20世纪80Era ban Drink pure water and powdered milk made with pure water。The World Health Organization's Drinking Water Quality Guidelines point out that the human body takes a certain amount of minerals and trace elements from drinking water, of which the typical intake of calcium and magnesium is about the total intake of adults5%-20%。Especially magnesium, the absorption rate of magnesium in water can be as high as59%Magnesium in water is the best source of nutrition for the human body。The "Recommended Dietary Nutrient Reference Intake of Chinese Residents" points out that essential minerals such as fluorine and chromium need to be supplemented from drinking water。

　　Shanghai Education Commission and Anhui Food and Drug Administration have issued clear documents，It is pointed out that drinking water is one of the important ways to provide essential minerals and trace elements for human body，Drinking pure water for a long time may make the body insufficient intake of certain minerals or trace elements，Can be harmful to cardiovascular health，It has a greater impact on primary and secondary school students who are in the growth and development period。Because pure water is easy to lead to the loss of various trace elements, compounds and various nutrients in children's bodies。Therefore, it is not recommended that primary and secondary school students drink pure water。