Check out 8 types of water that men should not drink

　　unboiled water:

　　Raw water contains bacteria, viruses and parasites that are harmful to the human body. Drinking raw water can easily cause acute gastroenteritis, viral hepatitis, typhoid, dysentery and parasitic infections. Especially nowadays, rivers, reservoirs, and wells are polluted to varying degrees by factory wastewater, domestic wastewater, and pesticides. Drinking raw water is more likely to cause disease。

　　Aging water:

　　Commonly known as "stagnant water", it is water that has been stored for a long time without moving. For minors, drinking this kind of water regularly will significantly slow down cell metabolism and affect the growth and development of the body; elderly It will accelerate aging. In addition, in many places, esophageal cancer, stomach cancer The increasing incidence rate, according to research, may be related to long-term drinking of aged water. Relevant data show that the toxic substances in aging water will increase as the water storage time increases.

　　Thousands of boiling water:

　　Thousand boiling water is water that has been boiled repeatedly. Because this kind of water has been boiled for too long, the content of non-volatile substances in the water, such as calcium, magnesium and other heavy metals and nitrite, is very high. Drinking this kind of water for a long time will interfere with the gastrointestinal function of the human body and cause temporary symptoms. diarrhea , abdominal distension. Nitrite can also cause hypoxia in the human body. In severe cases, coma, convulsions, and even death may occur.

　　Steamer water:

　　Steamer water is the leftover water from steaming steamed buns, steamed buns, etc. Especially steamer water that has been used repeatedly has a high concentration of nitrite. Regular drinking of this water or cooking porridge with this water can cause nitrite poisoning. In addition, the scale in the steamer water often enters the human body with the water, which can cause digestion, nerve Diseases in the , urinary, hematopoietic, circulatory and other systems cause premature aging of the human body. This is caused by the fact that scale contains more harmful elements such as cadmium, mercury, arsenic, aluminum, etc.

　　Unboiled water:

　　The tap water that people drink has been disinfected and sterilized by chlorination. Thirteen kinds of harmful substances can also be separated from chlorine-treated water, among which halogenated hydrocarbons and chloroform are carcinogenic and teratogenic. When the water temperature reaches 90°C, the content of halogenated hydrocarbons rises from 53 micrograms per kilogram to 177 micrograms, which is twice the national drinking water hygiene standard. Experts point out that drinking unboiled water increases the risk of bladder cancer and rectal cancer by 21% to 38%. When the water temperature reaches 100℃, these two harmful substances will be greatly reduced as the water evaporates. If it continues to boil for 3 minutes, it will be safer to drink.

　　Reboil water:

　　Some people are used to boiling the remaining warm water in the thermos bottle before drinking, in order to save water, coal (gas) and time. But this "saving" is not worthwhile. Because the water is boiled again and again, the water evaporates again, and the nitrite content will increase. If you drink this water often, nitrite will accumulate in the body and cause poisoning.

　　polluted water

　　Do not drink contaminated water: Drinking water contaminated by organic matter, heavy metals, microorganisms and other toxic and harmful substances cannot be drunk. Various drinking water products are susceptible to contamination when stored, transported, and in contact with various drinking water equipment. Among them, microbial contamination and excessive nitrate substances are most likely to occur. Once an odor occurs, it indicates that the water is contaminated and should no longer be consumed.

　　medical water

　　Medical water cannot be used as daily drinking water: some functional aquatic products currently on the market are water that has preventive effects on some diseases. Strictly speaking, these are medical water and cannot be consumed in large quantities as daily drinking water for normal people.