Therefore, normal people need to drink about 1500 ml of water every day besides eating, and about 6 ~ 8 glasses of water can meet the needs of human metabolism.
Tap water contains a small amount of chlorine for disinfection, which is a carcinogen. There is also scale, and drinking too much will make people stone.
Drinking water is also learned.
Water is an indispensable part of our body. People can live for a few days without food, and a few days without water will be over. Without water, many life activities stop, blood does not flow, and waste cannot be discharged from feces. When the cell activity in the human body stops, life is over. Therefore, it is important to replenish water. In addition to the moisture in food, it depends on drinking water. You must pay attention to drinking water.
Tap water cannot be drunk raw. After the tap water is pumped from the river, although it is disinfected by filtration, precipitation and bleaching powder, the disinfection is not complete, and there are still a certain amount of bacteria in it. Especially now, rivers in our cities are seriously polluted, and harmful substances such as bacteria are difficult to remove, so tap water cannot be eaten raw.
Do not drink hot spring water. Hot springs can cure diseases, especially joint pain and neuralgia. The water in hot springs contains different minerals and has a certain temperature, so it is very comfortable to soak in hot springs and take a bath, which is good for your health. But hot spring water is best not to drink. Because there are too many minerals and trace elements, such as too much sulfur and too much fluorine. Although fluoride is closely related to dental health, excessive fluoride, especially drinking fluoride-containing water for a long time, will lead to diseases of bones and joints.
Don't drink boiled water repeatedly. There are fewer bacteria in repeatedly boiled water, but nitrite will increase, which is not good for our health. Nitrite will make our red blood cells lose their oxygen carrying capacity, and ammonium nitrite will cause cancer.
Drinking rain, snow and water is also unsanitary. Some children will say that rain and snow fall from the sky, which should be the cleanest, but it will bring dust and bacteria into the air, especially in industrial cities, where air pollution is obvious and the composition of rain water is complex. Don't drink rain water.
Don't drink too fast or too much water. Drinking too fast will increase blood volume and increase the burden on the heart; Drink too much to expand the stomach and increase the burden on the stomach; Too hot water is harmful to oral cavity and esophageal mucosa; Cold water makes the stomach uncomfortable. Drink water to boil 5? 10 minutes, the water in the thermos bottle and the boiling water in the thermos bottle should also be changed every day, not for too long.
Benefits of hard water
Hard water will not directly endanger health. In fact, hard drinking water is rich in mineral components needed by human body, which is an important channel for people to supplement calcium, magnesium and other components. When minerals in a certain area have high solubility in water, drinking water will become the main source for people to absorb calcium and other components: calcium dissolved in water is most easily absorbed by the human body.
Disadvantages of hard water
Calcium ions in hard water (untreated) can easily form solid calcium carbonate (namely scale), which will bring a lot of troubles to life, such as scale plaque on water utensils, reduced washing efficiency of soap and detergent, rough skin after bathing, messy and dull hair, black and stiff washed clothes and so on. Among them, the damage to skin and clothing is the most serious.
At half past six in the morning:
After sleeping all night, the body began to lack water, so after getting up, drink 250 ml of water first, which can help the kidneys and liver to detoxify. It is best to wait for half an hour before eating breakfast after drinking water, so that water can fully promote gastrointestinal metabolism and help the human body discharge dirt.
8:30 am:
The process from getting up in the morning to going to work is always particularly tense, and people's emotions are often tense, so the body will be slightly dehydrated. So experts suggest that you don't rush to make coffee when you get to the office. You should first replenish yourself with a cup of at least 250 ml of water to relieve the water shortage in your body.
165438+ 0: 00 noon:
After working in an air-conditioned environment for a period of time, you must remember to replenish yourself with a third glass of water, otherwise the dry indoor environment will make your skin appear a lot of fine lines and look dull.
65438+ 2: 50 pm:
This time is about half an hour away from most people's lunch time. At this time, drinking a glass of water can strengthen the digestive function of the body, which is not only beneficial to health, but also helps to maintain a good figure.
3 pm:
At this time, drinking a large glass of water can not only replenish the water lost in the air-conditioned environment, but also help to keep a clear head. The active information transmitted to the skin through the brain can make the skin look radiant.
5:30 pm:
Drink another glass of water before leaving the office after work, so that your skin won't be chapped because of dry mouth on the way home. If you want to lose weight by drinking water, you can drink more cups to increase your satiety, thus reducing the amount of food you eat at dinner.
At night 10:00:
Drinking another glass of water 30-60 minutes before going to bed can replenish the water lost by sweating during sleep. But this glass of water should not be drunk too much or too late, or bags under the eyes will appear the next morning.
Drinking too much water can also lead to "water poisoning"
Drinking too much water can also cause "water poisoning". Drinking plenty of water for a short time will change the salt concentration in the blood and the fluid flow in the body. In severe cases, it will cause brain swelling, compression of skull and even death.
Drinking a lot of water in a short time is easy to cause "water poisoning"
"Water poisoning" refers to drinking too much water for a long time or drinking a lot of water for a short time. The body must excrete excess water through urine and sweat. However, with the discharge of water, the sodium-based electrolyte in the human body will be diluted, the salt in the blood will be less and less, the water absorption capacity will be reduced, and some water will be quickly absorbed into tissues and cells, resulting in cell edema. At first, there will be symptoms such as dizziness, weakness and rapid heartbeat. In severe cases, there will even be convulsions, confusion and coma. Therefore, it is dangerous for some girls to drink too much water to lose weight.
Many people don't drink enough water.
"For ordinary people, the main problem of drinking water is not whether drinking too much will lead to poisoning, but that most people don't drink enough water. How to make up? As long as healthy people don't drink a lot of water in a short period of time, the probability of' water poisoning' is very small. " In summer, everyone should supplement 1500 to 2500 ml of water every day, so even if the amount of exercise is not large, the amount of perspiration will consume a lot of water, even if you are not particularly thirsty, you should not forget to drink water.
Water in the human body will be lost in different ways anytime and anywhere, so it must be replenished at any time to maintain balance. Long-term water shortage will increase the concentration of urine and easily lead to diseases such as bladder cancer, kidney calculi's disease, constipation, dry mouth and dry skin. Although fruit juice, soup and milk can all be used as auxiliary drinks, water is still the best choice to replenish body moisture. Although alcoholic beverages, tea and coffee are also liquids, they all have diuretic effects and will accelerate the loss of water in the body. Soft drinks such as soft drinks that many teenagers like are high in sugar content and calories, and the role of supplementing water is relatively smaller than that of water.
Pay special attention to drinking water when exercising.
The consumption of summer water is very large, so it is particularly important to replenish water during exercise. The best way to drink water is to drink less and drink more. Drink it every 20 ~ 30 minutes during exercise, and drink 120 ~ 240ml each time. Drinking too much at a time, there is a lot of water in the stomach, which is bad for the gastrointestinal tract. If the amount of exercise is not large, and the time does not exceed 90 minutes, the body will not lose electrolytes and minerals, so it can be supplemented with water. If you do a lot of exercise and lose more than 2% weight after exercise, your body will be seriously short of water. It is best to drink some water or sports drinks containing salt or electrolyte to avoid cramps.
As for how much water to replenish during exercise, Director Chang suggested that it is best to weigh yourself before exercise, and then decide the amount of water to replenish according to the difference of weight change. Supplementing water during exercise can supplement 50% of weight loss. If it is rehydration after exercise, it is necessary to supplement the loss of 150%. In order to ensure the accuracy of the measurement, it is best to dry the water on your body, weigh the net weight before and after, or wear as little clothes as possible.
Drinking bottled water, bottled water is not necessarily safe.
Nowadays, bottled water and bottled water are becoming more and more common in people's lives. Many people use bottled and bottled water instead of boiled water that everyone used to drink. Recently, the relevant state departments conducted quality inspection on bottled water and barreled water, and found that 25% of bottled water and barreled water still had the problem of microbial indicators and total bacteria exceeding the standard. With the arrival of summer, people drink more water, so it is more important to choose safe and clean drinking water, and the cleanliness of drinking water has begun to be concerned by people.
The wrong drinking method will lead to "water poisoning"
Sweating a lot and hydrating a lot are more likely to cause water poisoning. Some people will feel very happy and quench their thirst when they are too thirsty in summer, or after exercising and sweating. Do you know this is the wrong way to drink water? Because people will sweat a lot after working, exercising or experiencing extreme heat, they will not only lose water, but also lose a lot of salt. If you drink a lot of boiled water at a time without supplementing salt, water will be absorbed by the gastrointestinal tract and excreted through sweating, and some salt will be lost with sweating. In this way, the salt in the blood will be reduced, the water absorption capacity will be reduced, and some water will be quickly absorbed by tissues and cells, resulting in cell edema and water poisoning. At this time, people will feel dizzy, dizzy and thirsty, and suddenly faint in severe cases.
Healthy drinking water is eight cups a day.
1. Why do you need eight glasses of water every day?
50%-60% of human tissues are water. The human body needs enough water to maintain normal physiological functions. Every calorie of food needs one milliliter of water to maintain the metabolic balance in the body. The average person needs to consume 1.5 ~ 2 liters of water every day, which is equivalent to eight cups (about 200 ml per cup).
2, the correct intake of water-
It is wrong for people to drink water when they feel thirsty, which shows that the cells in the body are already dehydrated, so they will feel thirsty. But too much water intake will also increase the burden on the kidneys. People who drink less than 5 glasses of water are prone to constipation and other symptoms, causing problems such as dull skin color, dryness and dry heart.
Therefore, drinking 1.5 liters per day is not enough to complete the task. The food we usually eat, such as vegetables, fruits, drinks, etc. , all contain water. If you eat fruit and soup today and then drink 8 glasses of water, you may consume too much water.
3, scientific hydration-
A. Drink a large glass of water on an empty stomach in the morning and lie on the right side for 15 minutes, which is helpful to regulate liver and gallbladder function and promote normal defecation.
B. it is not advisable to drink too much water after meals. Because drinking too much water will only dilute the digestive juice in the stomach and affect the digestion and absorption of food.
C. it is not advisable to drink too much before going to bed. In order to avoid water stagnation in the whole body tissue, it becomes edema and forms bags under the eyes.
D. it is best to drink warm water. Ice water can stimulate the stomach, hinder digestion and secretion, increase the load of digestive organs, and lead to indigestion.
E. Never drink raw water.
F. milk, fruit and vegetable juice, soup, etc. It should also be recorded in the daily drinking volume to prevent excessive drinking from bringing burden to the kidneys.
G. When sweating heavily in summer, if you exercise, you can appropriately supplement light salt water to replenish lost body fluids.