Eight Cups of Water Can Preserve One's Health

Professors Said: Water, Over 3000 Milligrams Can Damage Kidney.

The news report of“5-year-old boy punished to drink 20 cups water lead to hydronephrosis”caused heated debate by many net friends. It can cause hydronephrosis after a lot of water intake? If the saying of‘’8 cups of water in daily‘’regarded as principle by many people is reliable ?Too much water brings us health or damage?
In Shijiazhuang Kidney Disease Hospital , journalists know about that drinking water should follow “water intake equals water output”rule. Plain boiled water is the main and best, and can’t drink too much for only one time. Moreover ,never drink water only get thirsty ,and drink a little but many times is the best way and the effect will be the best.

Excess water intake can cause poisoning.

Adults consume 2500ml water daily, which is not only the water we drink but the water in the food, such as vegetables, in which 90% is water, and fruits ,in which 80% is water.
It maybe too much to intake 3000ml water everyday and it is especially too much for patients with bad heart and kidney function, or patients with pumonary resection and kidney function problems.
Thus ,moderate water drinking can benefit your body, but too much water not only have no benefit but also can damage your body, even lead to poisoning.
Where does the criterion come from?
The saying of eight cups of water is very general. Some people regard 150ml cup as a cup, but there are also people regarding 220ml,250ml and big cup of 500ml a cup, which make the water intake differ a lot.
From a scientific point of view, it is not a wise behavior to insist on the criterion, even it maybe harmer than good.
Then, where does the 8 cups water criterion comes from? Shiwei indicated that there was no people know the criterion origin.
Too much mineral content is not good.
Many people think that the purer the water is, the better it is, but actually ,long-term Clearwater drinking can lead to body malnutrition. Long-term Clearwater drinking can take away the useful microelement ,and then lower the body immunity and easy to cause disease.
It’s known that scientists all think that good water intake should conforms with the following :
No pathogenic bacteria, heavy metal and harmful chemical substances; Contain moderate mineral substance and microelement; Contain moderate fresh dissolved Oxygen; More alkaline, and the molecular group should be small and active.
A great deal of water can lower the kidney filtration ability.
Eight-cup-water’s cosmetic result  which has become a hit on the internet ,not only be chased after by young women, but also many old people all think that a lot of daily water intake can eliminate the body toxin. In the dog days, there are many people even think the water intake should be more than 3000ml for eliminating the body toxin.
According to what Shiwei said, the kidney filtrates our toxin in the blood circulation ,and then the toxin is secreted through urine. But, actually ,drinking too much water can decrease the kidney filtration ability which is very tiny but really exists.
Scientific drinking time
In the morning, drink water moderate water after getting up can replenish the water consumed in the nighttime.
Drinking water, about 1 hour before the three meals, can make the water into histocytes of the whole body, satisfied the water need of the body, ensure the necessary and enough digestive juice to increase the appetite and help the body digest and absorb.
Drinking in the working time can supplement the water which is secreted in working and eliminated through urine, and the waste staying in the body also can be easily secreted owing to the water drinking. It can increase the feeling of fullness to drink a cup of water before leaving the office.

Two to three hour before sleeping  drinking water can  dilute the blood and stimulate the blood circulation.