Drinking boiled water is a good habit, but you know what? You can't drink water once it is boiled. Because our tap water is chlorinated and disinfected, the combination of chlorine and residual organic matter in water will produce carcinogenic compounds such as halogenated hydrocarbons and chloroform.
Jiang Weibo, a professor at the College of Food Science and Nutritional Engineering of China Agricultural University, suggested that there should be three steps when boiling water: first, take out the tap water and put it for a while before burning it; Open the lid when the water is about to boil; Finally, after turning off the water and waiting for 3 minutes, the chlorine content in the water can be reduced to the safe drinking standard. Is this true? Boiled water.
Bad habit 2: the water dispenser never washes.
Barreled water and drinking fountains are very common in families, offices and public places. Have you ever thought that the used water dispenser has never been used since it was put there? Shower? .
The water dispenser seems to make people drink high-quality water, but in fact? Secondary pollution? Very serious. Do you hear every time you turn on the tap of the water dispenser? Gollum? Sound, a string of bubbles in a bucket, means that when air goes in, dust and microorganisms will be brought in.
According to the test data of the national environmental health monitoring department, if the cold and hot water containers in the barreled drinking fountains are not cleaned for 3 months, a large number of bacteria, such as Escherichia coli and Staphylococcus, will breed. So it's best to clean it once a month and once every two weeks in summer. The drinking fountains in the office need to be cleaned frequently because of frequent use.
Bad habit 3: Love to drink bottled water.
Easy to carry, open the lid and drink. In China, the consumption of bottled water is increasing by 30% every year.
Dong Jinshi, executive vice president of the International Food Packaging Association, pointed out that polyester bottles used in bottled water often contain substances that may cause chronic poisoning, especially when the bottles are in a high temperature environment or are not drunk in time after opening, harmful substances will penetrate into the water and endanger health.
Therefore, bottled water must not be heated or exposed to the sun. ? Many people like to put a box of water in the car, which is wrong. Especially in summer, the temperature of the trunk is very high, which makes it easy for harmful substances to enter the water. ? Dong Jinshi suggested that the best way is to buy a good quality kettle to bring your own water, which is safe and environmentally friendly.
Bad habit 4: Drink thousands of boiled water.
Nowadays, more and more families use electric kettles. Many people can't drink all the water at once and then boil it again and again. You'd better not drink this boiled water. ? Zhao said that after the water is boiled, try to drink it as soon as possible, and don't heat it repeatedly.
Many people are worried about whether the water in the drinking fountain is boiling water. Due to the limitation of materials, the highest temperature of water in drinking fountains is generally around 90 degrees Celsius, not boiled water. ? But the best drinking time of bottled water is 1? 15 days, once it exceeds 15 days, there are too many bacteria in the water to drink. ?
Bad habit five: don't be thirsty or drink water.
According to a survey in China, 70% of adults only drink water when they feel thirsty. But when you feel thirsty, your body loses at least 1% water.
Drinking water is not to quench thirst, but to let it participate in metabolism and be absorbed by the human body. Long-term water shortage will increase the viscosity of blood and induce cardiovascular and cerebrovascular diseases. At the same time, the less you pay attention to drinking water, the lower your desire to drink water, and the more people will be? Drought? .
Therefore, whether you are thirsty or not, you should replenish water in time. Take a bottle of water when you go out and take a sip at any time; Put more water cups in the office or at home and drink them whenever you have the chance.
Bad habit 6: Not drinking enough water every day.
People who go to work often ignore drinking water because of their work. In this way, their bladders and kidneys will be damaged.
Adults with mild climate and light physical activity are advised to drink at least 1200ml of water every day, about 6 cups. If you exercise a lot and sweat a lot, you should increase the amount of water and replenish water in time.
Some people may ask, it has always been said that drinking no less than 2000 ml of water every day, that is, 8 glasses of water. Why is there only 1200 ml now? In fact, 2000 ml refers to the total amount of water that people need in a day. Fruits and vegetables contain a lot of water, even in staple food and meat. A large part of the water people need comes from food.
Six cups is the least, and some people need to drink more. For example, irritable people can relax by drinking more water, while obese people can maintain their weight by drinking more water, and they should also replenish water in time after exercise and bathing.
Bad habit seven: don't drink water according to your constitution, drink instead of water.
Plain water is tasteless, so drink it. ? Many children keep cola and fruity drinks every day, and using drinks instead of water is tantamount to spending money to treat diseases. ? Not only can not replenish water to the body, but also reduce appetite and affect digestion and absorption. ? Zhao said to him.
If you must drink tasty water, you should improve it according to your own physique. For example, people with constipation can drink honey water or fruit and vegetable juice, which can promote intestinal peristalsis; People with a cold stomach should drink less cold green tea, herbal tea and juice, and drink more warm black tea and ginger juice.
Bad habit 8: Don't drink water in the morning, and regret it when you are old.
The first glass of water in the morning is really life-saving water, and middle-aged and elderly people should pay more attention.
After a night of metabolism, the garbage in the body needs to be cleaned. Drinking a glass of water can reduce blood viscosity and increase circulating blood volume.
It is best to choose the following three kinds of glasses of water in the morning: the first one is clear water, boiled water and mineral water, which can reduce the viscosity of human blood. The second is light lemonade. Citric acid can stimulate appetite in the morning. The third is warm and light salt water, which is very good for people with constipation.
Bad habit 9: Don't replenish water immediately when you are salty.
Eating too salty will lead to high blood pressure, decreased saliva secretion and edema of oral mucosa.
If you eat salty, the first thing to do is to drink more water, preferably pure water and lemonade, and try not to drink sugary drinks and yogurt, because too much sugar will also aggravate the feeling of thirst.
Light soybean milk is also a good choice, of which more than 90% is water and contains more potassium, which can promote the discharge of sodium and taste sweet.
Bad habit 10: Don't drink water before going to bed.
It is not advisable to drink too much water before going to bed, but you can drink a little, especially for the elderly.
When people sleep, due to the loss of water in the body, the water in the blood decreases and the blood viscosity becomes higher.
Drinking some water properly before going to bed can reduce blood viscosity, thus reducing the risk of cerebral thrombosis. In addition, in dry autumn and winter, water can moisten the respiratory tract and help people fall asleep better.