Balanced drinking of plain water and distilled water, mineral water, etc. “Water quality is indeed related to disease.” Dr. Chen Yanming, director of the Department of Endocrinology at the Third Affiliated Hospital of Sun Yat-sen University, said that one of the reasons for the high incidence of stone disease in Guangdong, Guangxi and Fujian is related to the high hardness and mineral content of water (of course, stones are affected by genetics, dietary habits and lifestyle habits). Some studies have shown that the high calcium and other mineral content of Guangdong’s Dongjiang water system can increase the prevalence of stones when consumed over the years. High water hardness, she said, also affects blood metabolism and has an indirect effect on ventilation, obstruction, tumors, infertility and other problems. But the problem of poor groundwater quality should be viewed dialectically, the human body is composed of 90 percent of water, the need to intake water to ensure the normal functioning of metabolism. Chen Yanming said that the daily intake of 8 glasses of water (2000ml) can not be less. But also can not choke, refuse to drink tap water, only drink pure water. Tap water under strict state supervision needs to be qualified before leaving the factory, and generally tap water boiled for drinking will not affect health. She suggested that high water hardness, limescale areas, you can also consider boiling water and pure water, distilled water, mineral water and other alternate drinking, balanced intake, not only to avoid long-term intake of high hardness water, but also to reduce the long-term drinking pure water lack of minerals. Drinking tea and coffee is included in the “8 cups of water” in “how much water we need to drink every day is determined by the amount of urination.” Chen Yanming said that normal people urinate about 1500ml a day, unless it is a special group of people (such as kidney disease, heart failure and other patients need to control the amount of water), the most normal daily intake of water to reach 2000ml, which is often referred to as “8 cups of water”. How to calculate this 8 glasses of water? Chen Yanming said that the daily liquid intake can be calculated into the calculation, fruits and other water-rich non-fluid food is not counted. The main intake of water should come from plain water, not too strong tea, coffee and soft drinks can be included, but are not recommended to drink more, they will bring other negative health effects, such as drinking carbonated beverages easily lead to dental decalcification, osteoporosis and other problems. Online rumors “24-hour water table”, it is recommended to drink water every day at regular intervals, such as 7:00 a.m. to wake up a glass of plain water to help cleanse the intestines, 8:30 a.m. to the unit and then make up a glass of …… Chen Yanming said, in the case of ensuring adequate intake of the total, there is no need to set a schedule for drinking water. Timetable. Just grasp the basic principles: most of the water should be supplemented during the day. Normal people urinate 5-6 times during the day, 2-3 hours to urinate once, according to this cycle of appropriate replenishment of water. Drinking too much water at night will affect sleep, should try to drink less, and do not drink an hour before bedtime.