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Wang Xiaoming, who had been playing ball for a day, came home, put away his school bag and began to look for water to drink.
Wang Xiaoming's mother saw Wang Xiaoming take the cup on the coffee table and prepare to drink it, and hurriedly stopped it.
"This is overnight water, you can't drink it, it's not good for the body. The water in the kitchen is about to boil, let's drink hot water. ”
Who knew that Wang Xiaoming said, "Mom, don't you know that such water contains carcinogens?" Even WHO proves it. ”
Wang Xiaoming's mother looked surprised, how could boiling hot water have carcinogens? Isn't this much better than overnight water, yin and yang water and thousands of boiling water?
First, the type of water that is not good for the body
Water is the source of life, about 70% of the human body is composed of water, human life is inseparable from water.
But some drinking water, after drinking, is not good for the human body, such as overnight water, yin and yang water and thousands of boiling water.
At this time, some friends will ask, what are these three types of water?
Overnight water, yin and yang water and thousand boiling water are often mentioned, but many people do not know about these waters. Here is an explanation of what this water is.
1. Overnight water
Overnight water refers to water left over the night before and continued to be used the next day.
Many people like to make tea at night and then leave the rest of the tea in the teapot to drink the next morning.
Some people will prefer to leave a glass of water or a bowl of soup to drink the next morning.
However, after overnight, these left water will breed bacteria under the influence of temperature, oxygen and other factors, making the water quality unhealthy.
Therefore, it is recommended that everyone do not drink overnight water or tap water for more than seven days.
2. Yin and yang water
There are two concepts of yin and yang water, and the yin and yang water that the people say in their mouths is generally afraid that the drinking water is too hot, so cool water and hot water are mixed together to achieve a temperature suitable for drinking.
This yin and yang water will not have much side effects after drinking, as long as the water used is not raw water.
And there is also a kind of yin and yang water refers to a kind of water placed in restaurants and other places for washing and disinfection, also known as hydrolyzed chlorine.
It is made from an aqueous solution of chlorine-containing compounds.
This water kills bacteria, disinfects and simplifies the cleaning process, but it can also cause harm to human health when concentrated or used incorrectly.
Therefore, in restaurants and other places, it is recommended to use yin and yang water strictly in accordance with the instruction manual.
3. Thousands of boiling water
There are also two sayings for Qianzhuan water, the first is Qianzhuan Water is a health preservation method in traditional Chinese medicine.
This water has been considered an effective way to eliminate moisture from the body since ancient times.
To make Qianboiling water, you first need to put Chinese medicinal herbs such as ginger, red dates, goji berries, and dried cinnamon into a pot, and then add an appropriate amount of water to boil.
Next, let the water boil for a thousand rolls, that is, four or five hours.
When the water is reduced by about half, after filtration, it becomes a thousand boiling water.
Qiqian water is believed to have many benefits, such as clearing heat and detoxification, improving the immune system, regulating blood sugar, boosting metabolism, and reducing symptoms such as qi deficiency.
However, due to the many ingredients of Qianbu Water, many ingredients need to be boiled in large quantities, which may cause some ingredients to be destroyed.
Therefore, it is recommended to pay attention to controlling the temperature and the amount of materials used when making thousands of boiling water.
The second type of boiling water refers to heating the water repeatedly and many times.
If you drink such water, there are indeed a series of side effects.
Water that is heated repeatedly will lead to a gradual increase in impurities and minerals in the water, which in turn will lead to poor water quality and may even have a negative impact on human health.
The specific reasons are as follows.
Concentration of substances in water: After repeated heating, the water begins to evaporate, but the minerals and impurities in it do not disappear with the evaporation of the water.
Instead, it becomes more concentrated as the water decreases, resulting in poor water quality.
Mineral residues: Minerals in water may not completely dissolve after repeated heating.
This can remain in the water, causing mineral precipitation and crystallization, resulting in hard or dirty water.
Accumulation of harmful components: Some harmful substances in water, such as heavy metals, fluoride, etc., may undergo chemical reactions after repeated heating.
This is then converted into more harmful ingredients, so that harmful substances in the water gradually accumulate, causing health threats.
Bacterial growth: The quality of water after repeated heating decreases, and bacteria may even breed, especially when the temperature is below 100 ° C, which is more likely to breed bacteria.
This increases the risk of excreta transmission, as there is a risk of leaving pathogens in drinking water and spreading them with repeated heating.
Scale problems: The scale obtained by repeated heating will not only cause the water to taste worse, but may also settle in the tubes and kettles.
It accumulates more and more, forming larger scale. This not only affects the life of water heaters and kettles, but also endangers health.
Therefore, it is not recommended to drink water such as Qianzhuan Water.
In addition to the above kinds of water, there is another kind of water that WHO calls "carcinogenic water", which is hidden in our daily lives.
2. High temperature hot water above 65 degrees
Studies have shown that long-term drinking of hot water above 65 degrees Celsius carries a risk of stomach cancer.
Long-term drinking of high-temperature hot water can lead to excessive gastric acid secretion, which may irritate the stomach lining and increase the risk of stomach cancer.
But we look at everything dialectically.
The scientific community's findings on the relationship between long-term exposure to hot water and stomach cancer are inconsistent.
Other studies suggest that there is no direct causal relationship between hot water and stomach cancer.
Stomach cancer is a disease caused by multiple factors, including eating habits, smoking, genetic factors, bacterial infections, etc.
Therefore, although long-term exposure to hot water may increase the risk of stomach cancer, it is not the only factor.
But if you drink high-temperature hot water above 65 degrees for a long time, it will indeed bring some harm to the human body.
1. Damage to the oral mucosa
Drinking hot water can cause the oral mucosa to be stimulated by heat, causing damage and pain to the oral mucosa.
Even the oral mucosa will be burned with eschar or hot water, and the oral mucosa is damaged, easy to infect, and long-term unhealed will cause gingivitis, subgingival abscess and other diseases.
2. Irritation of the stomach
High temperature hot water stimulates the stomach, which will not only cause excessive gastric acid secretion, but also further stimulate the stomach tissue, accelerating the aging and lesions of the stomach.
3. Change the elasticity of blood vessels
High temperature hot water can easily cause spasm of blood vessels, so that blood vessels constrict, and blood circulation is affected at this time.
Moreover, people with varicose veins are more unable to drink high temperature and hot water, which may induce cardiovascular diseases such as stroke.
4. Damage to the throat
Long-term drinking of hot water can irritate the throat, resulting in dry throat and loss of self-cleaning ability.
Bacteria are easy to breed, causing laryngeal inflammation, once the disease occurs, the throat will have obvious discomfort, resulting in hoarseness and other discomfort.
5. Exacerbate the burden on the kidneys
High temperature hot water aggravates the load on the kidneys, causing the kidneys to lose normal nutrient and blood supply, and increasing the burden on the kidneys.
Drinking for a long time may damage the kidneys and become a hidden danger of kidney disease.
In addition to these hazards that can be listed, long-term drinking of hot water will also reduce the body's immunity, resulting in susceptibility to disease.
Because long-term drinking hot water will deplete the body's vitamin C, resulting in a variety of health problems such as smooth and weak muscles, dry skin and lack of water.
Therefore, we should try to avoid drinking high-temperature hot water, and choose running tap water or water sources that have been professionally filtered to ensure the health and safety of water.
So which water is the healthiest to drink?
Third, the healthiest drinking water
Many friends are very afraid after seeing the harm that overnight water, yin and yang water, thousands of boiling water and high-temperature water may bring.
Because this is the drinking water that we are most exposed to in our daily lives.
So besides this water, what is the healthiest drinking water?
The healthiest drinking water is not a certain standard or type, because drinking water should be reasonably selected according to its physical condition, environment, source and quality of drinking water.
No matter what type of drinking water it is, its health and safety should be a very important point.
Instead of looking for the healthiest drinking water, learn some ways to choose healthy drinking water.
In our real life, there are several types of water that are actually very healthy.
The first is pure water, which is a kind of water that removes impurities in the water because most of the pollution and impurities in the water are removed after it has been filtered and treated many times.
However, the loss of some beneficial minerals in excessively pure water may have certain health effects.
The second is mineral water, which is water that occurs naturally and has specific components and minerals, and may contain a variety of beneficial minerals.
However, it should be noted that the mineral composition of different mineral waters is different.
Therefore, you should pay attention to the composition list of mineral water before drinking and choose the mineral water that suits you.
The third is tap water, which refers to water that has been purified and treated by a water plant.
Under normal circumstances, tap water purified by standard and standardized tap water treatment plants is also safe to drink.
This kind of water is also the most common water in people's homes, but there may be differences in water quality due to regions and seasons, so it is recommended to test tap water before drinking.
In short, choosing drinking water suitable for individuals needs to be considered comprehensively from quality, health, water environment, etc.
After all, water is the source of people's life, it is recommended to choose water sources that have been proven to be safe and healthy, and pay attention to maintaining water quality clean and hygienic.
brief summary
With the improvement of the overall level of society, people are paying more and more attention to their own living standards
Especially when it comes to eating and drinking, if you don't pay attention to it, you may endanger your body.
Elderly people often say to drink more hot water, but we must be clear that we should not drink hot water that is too hot.
Hot water below 65 degrees is the most suitable for us.
So what are your drinking habits in everyday life? Welcome to leave a message to share.