Remember how many times you argued about the most delicious water? Of course, the best water is from childhood. Someone remembers a village well when he came to visit his grandmother on vacation, and someone remembers a mountain river, a spring, an artesian well. Many people use such water, especially in summer, on vacation.. And in fact?

First of all - it must be clean We are 70% water. Doctors insist that we drink at least 2 liters of water a day. What should she be? Of course, not hazardous to health, which means - clean. What does it mean?

The first requirement is that it should not contain any microorganisms and parasites. Exactly 100 years ago, for this purpose, water chlorination standards were adopted in the United States, which are still in effect today.. Chlorine kills almost all microorganisms in water - as a result, you can drink it without the risk of getting typhoid or cholera.

However, over these 100 years, much has changed and tap water can no longer be considered clean and safe for health.. Chlorination not only does not kill some parasitic microorganisms with powerful protection against external influences (Cryptosporidium, Giardia), but also generates toxic substances in the water.

Unlike plants, we are not able to absorb the necessary elements in the form of inorganic compounds (the exception is sodium chloride, or table salt). Tap water purification systems remained without significant changes, they are the same as 100 years ago, but the water itself at the water intake points has become much worse. And we don’t even know what toxic substances can be in it, and we can’t prevent it in any way.

By the way, there is a common myth that the best water comes from springs, wells, artesian wells.. If you take water from a well or well, do not be too lazy to take it for analysis - for example, to the department of Rospotrebnadzor. There were cases when water from an artesian well contained 16 (! ) times more fluoride than regular tap water. Even plants cannot be watered with such water..

Our civilization has successfully cornered us. Uncontaminated water sources have become a rarity, and we readily buy plastic bottles with expensive water. There are also glaciers in Greenland and Antarctica, which store the purest water, frozen even in those times when there was no industrial waste. However, this is a very expensive pleasure..

" On a small scale, for scientific research, this problem was learned to solve about 35 years ago.

In scientific laboratories, such pure water was jokingly called "

Two other methods of water purification have also been used for a long time: absorption on activated carbon, which retains organic substances well, and the so-called molecular filtration. The latter method began to be widely used relatively recently, when cheap membranes for molecular filtration became available - one of the outstanding achievements of modern technology. ologue.

Did people in the old days use comparable to \? Yes, once the purest was considered rain water, a natural distillate. But now rain water often becomes poison.

Is boiled water dangerous

But drinking water from the tap is not possible in all regions - despite the fact that the water is disinfected, it then still gets into worn-out water pipes, collecting all the dirt. Therefore, it is better to play it safe and use a water filter.. Better yet, drink boiled water..

By the way, there is an opinion that it is impossible to boil water several times - it becomes harmful.. Indeed, according to scientists, there is " But for it to appear in the kettle, you need to boil about a ton of water for several days.. And then only two or three molecules of "

So rumors about the dangers of boiled water several times are exaggerated.. Bottled water is healthier if it's not fake and really purified.. If you want to be safe, buy sparkling water - it's more likely that it's factory-made, because carbonating it is more difficult than just pouring it.. True, she will have to stand up to get rid of the bubbles..

Delicious water - delicious food To prepare delicious and healthy food, you need to use only the best quality water.. Otherwise, the food will be " Foreign impurities in the water give it a not very pleasant taste and smell, affecting the taste of dishes..

In water with reduced hardness, the aromas of tea and coffee dissolve better, giving drinks a richer taste and smell.. Vegetables boiled in filtered water retain their flavor and color better.. Filtered water is also suitable for preparing food for small children (including formula milk).

To date, the most modern way to maximize water purification and make it crystal clear is a reverse osmosis system.. In addition, the water becomes fresh and pleasant to the taste, and the food cooked on it acquires excellent qualities..

According to various estimates, about 90% of people live in conditions of fluorine and iodine deficiency.. Therefore, it is possible to iodize or fluoridate drinking water, as is done, for example, in the USA and Western Europe.. In our country, such attempts were made, but they did not lead to large-scale projects.. Pleasure is expensive.

Statistics 70% of water received by man - from rivers and lakes, 30% - from underground sources. Every tenth inhabitant of the Earth suffers from the consumption of poor quality drinking water.. Mineral waters are called natural and artificial waters, which, in comparison with fresh waters, contain an increased amount of salts, gases, organic substances and have a therapeutic effect due to special properties (temperature, content of biologically active components, radioactivity, etc.)..

And further.

In the middle lane, with minimal physical exertion, you need to consume 3.5 liters of fluid along with food and drink, with moderate work - up to 5 liters, with heavy work outdoors - up to 6.5 liters.

If you want to lose weight, drink half a glass of water before meals - this will allow you to eat less.. Children under the age of five need water most of all - their body is quickly dehydrated, so they need to drink often.

In a word, without water, well, nowhere!

Elizaveta Vasilyeva.

nedug. en.

e-news. com. ua.