Drinking enough water is an important part of maintaining good health, drinking water can maintain the body's fluid balance, promote anabolism, and have a positive significance for maintaining the normal functions of the body.
However, there are too many misconceptions about drinking water, such as "drinking hot water is better for health than drinking cold water", "boiling water and overnight water can cause cancer" and so on. In order to dispel the rumors, today the family doctor wants to talk to everyone about drinking water!
It is widely said that drinking too much cold water can harm the spleen and stomach, cause stomach pain, indigestion and other problems, but in fact, the scientific evidence for these statements is insufficient.
First of all, a healthy human body has a complete set of temperature regulation mechanisms, no matter what you drinkCold or hot water, passing through the digestive tract and entering the stomach, will slowly become the same as the temperature in the body
In addition, modern evidence-based science has also confirmed that as long as you drink itThe water temperature is in the range that humans can tolerate, and the level of water temperature has little to do with physical health.
The only thing worth noting is thatPeople with a history of gastrointestinal disorders or a weakened digestive system should avoid consuming too much cold water, because cold water passing through the digestive system may cause vascular stress constriction of the gastrointestinal mucosa, leading to the occurrence of gastrointestinal spasms.
Therefore, whether to drink cold or hot water depends only on the needs and health of the individual, while cold or hot water does not directly affect health.
Many people feel that the nitrite content of boiled water will increase significantly after being boiled overnight or repeatedly, which in turn will increase the risk of cancer.
But in fact, the tap water that people can drink now is filtered, disinfected and disposed ofNo matter how you boil, the nitrite content is very low, and it is not enough to cause cancer within the safety range of the national standard.
If it is said that boiling water and overnight water are a threat to health, it is mainly due to the storage method, for example: the cup is not properly closed, allowing germs and bacteria to contaminate the water source.
If there is really any water that can cause cancer, it should be that people should be wary of it – piping hot water (i.e. water with a temperature of more than 65 degrees Celsius).
As early as 2016, the International Organization for Research on Cancer (IARC) under the WHO mentioned thatHot drinks above 65 degrees Celsius (including water) are class 2a carcinogens, and people who drink drinks above 65 degrees Celsius for a long time can increase the risk of esophageal cancer.
1.Choose clean and hygienic water
Before drinking water, you should make sure that the water source you drink is clean and hygienicfilter or boil waterto improve water quality.
2.Drink water at the right time
Many people in life will not take the initiative to drink water when they do not feel dry and thirsty, which is a very bad Xi. Because dry mouth and thirst appear, it is already indicating that the body is out of balance, so people should take the initiative to drink water at the appropriate time every day.
3.Drink water in small amounts and often
**Recommended intake of 1 per day5-1.7 liters of waterIn order to save trouble, some people may drink enough at one time, which can easily cause "water poisoning". Therefore, drinking water should be small and many times, and not "one step to the sky".
All in all, for the sake of people's health, it is recommended that everyone do not drink hot water and follow the above principles of healthy drinking water.