People always heard that one day to drink 8 glasses of water, this is the science of it? Now, there's a more accurate standard for drinking water.

According to the Planning Commission recently released version of "dietary guidelines for Chinese residents (2016)" on the amount of water the new recommendation, adult daily amount of drinking water by the old standard of 1200 ml increased to 1500-1700 ml and a small number of times of drinking, advocate drinking boiled water and tea, do not drink or less drink sugary drinks.

Drink plenty of water is very important. Shanghai Sixth People's Hospital, division of clinical nutrition director Ge sound, the water body will produce thirsty, cough, fatigue, decreased blood pressure and other physiological responses, and even coma and death, so do not wait until thirsty to drink water to take the initiative to drink, at any time to add moisture, increase the drinking water can also reduce the risk of kidney stones.

In addition, relevant statistics show that currently in China there are about 24% of the people in drinking bad water, of which about 30 million people drink high hard water, 50 million people in drinking high fluorine water, water pollution has become the health of the Chinese people a big invisible killer.

Pure water is not as healthy as mineral water

Since drinking water is so important for the human body, then what should we drink? Shanghai geological society, said Niu Xiaoying, chief expert of mineral water Specialized Committee, healthy drinking water should have four conditions at the same time:

- there is no pollution, no toxic and harmful substances;

- have a certain hardness;

- contains minerals and trace elements;

In the pH value of water in 7.2-7.8, as in weak alkaline water.

Drinking water in accordance with these four conditions is known as the "healthy water", "living water", so that the water in the body's metabolism, can provide a stronger metabolic force and cell penetration.

Niu Xiaoying stressed that consumers generally have a lot of misunderstanding of the sale of packaged drinking water, pure is not equal to health, so pure water is not a healthy water; nor is it in the bottle can be called "mineral water"".

Natural mineral water due to meet the four conditions of healthy drinking water into drinking water of choice, consumers in the purchase must assign the product label, the words "natural mineral water".

However, due to limited resources of natural mineral water, coupled with the price factor, and can not meet the daily needs of a large number of ordinary families drinking water, for the majority of people, tap water is still one of the best.