Get up in the morning. Familiarize yourself with the healthy concept of drinking a glass of water after getting up in the morning. Drinking a glass of water after waking up is necessary, experts say. When you sleep at night, your body uses up a lot of water through urine, skin, and breathing. Drinking some water after getting up in the morning can replenish the lack of water in the body, but how to drink the first glass of water in the morning? There are various claims about light salt water, honey water and carbonated drinks, but I think it is best to drink boiled water in the morning. When it comes to boiled water, he touches on another question, which is can you drink boiled water overnight? There are different views on the issue, so what is the truth?

Can't drink water overnight?

Some people say that drinking water overnight can cause cancer, is this true? If you can't drink water overnight, it must be because the water has deteriorated, producing new substances. However, there is no fixed time point for the deterioration time of water, because the quality of water is affected by objective environmental factors, such as external temperature and temperature. In summer, the temperature is higher, there is more moisture in the air, bacteria multiply faster, and it is easy to spread and pollute the water source. So if you can't drink overnight water in summer, try not to. In addition, experts recommend that boiled water should not be left for too long. After many days, boiling water is unfit for drinking. In addition, it is best to drink bottled purified water within a week.

You can drink boiled water overnight, but these 3 kinds of water cannot be drunk

1. Raw water

There are various bacteria, viruses and parasites that are harmful to the human body in raw water. After drinking raw water, it is easy to cause acute gastroenteritis, dysentery, viral hepatitis and parasitic infection, especially in large and small rivers, well water, and reservoirs. They are all polluted to varying degrees by factory waste liquid, domestic waste water, and pesticide residues, so drinking raw water can cause diseases.

2. Unboiled water

The tap water that people drink has been chlorinated and sterilized, and 13 kinds of harmful substances can be separated from the chlorine-treated water. Among them, halogenated hydrocarbons and chloroform also have carcinogenic and teratogenic effects. Experts pointed out that drinking water that is not boiled will increase the risk of rectal cancer and bladder cancer by about 30%. When the water temperature reaches 100°C, these two harmful substances will be greatly reduced with the evaporation of the steam. If you continue to boil for three minutes, you can drink it safely.