During the day, there are three important periods for drinking water: when you get up in the morning, around 3 pm and 7-9 pm. Especially that glass of water in the morning is very important!

You can get up in the morning, don't wash your face, don't rinse your mouth, drink seven-in-one water first, uninterrupted, and have a special effect of clearing the intestines. "Hehe" is a Japanese unit of measurement, with a contract of 0. 18kg, and seven hehes are equivalent to 1.26kg, that is, 1260ml. If you can't drink this amount, you should drink at least 500 ml. If you drink 500 ml, you can drink it in 300 mouthfuls, about 1.67 ml at a time, and you can also cultivate patience. Because people's health will be bad, they are often too impatient (be positive but don't worry).

Why is it important to get up early in the morning and drink a glass of water before going to bed? Medical research has confirmed that the viscosity of human blood will change constantly in a day, and there are certain rules. Blood viscosity is the highest at 4-8 in the morning, then gradually decreases, reaches the lowest point in the morning, and then gradually increases until it reaches the peak again in the morning. This regular fluctuation is more obvious in the elderly. The onset time of cerebral thrombosis is mostly in the early morning to morning, which shows that the increase of blood viscosity is inevitably related to the occurrence of cerebral thrombosis.

Another study suggests that if the elderly are allowed to drink 200 ml of water at night, the blood viscosity will not increase in the morning, but will decrease. Therefore, the medical community generally believes that drinking water at night can really reduce blood viscosity, keep blood flow unobstructed and prevent thrombosis. Of course, there are many reasons for cerebral thrombosis, and the increase of blood viscosity is only one of them.

Because after people fall asleep, the human body will lose water due to breathing, sweating and urination, so if the water is not replenished in time in the morning, the physiological function will be affected.

Second, drinking time and health: the best drinking time

Water is the source of life, nutrition permeates the whole body through water, and waste is excreted through water, which is the foundation of life. The water in human body consists of extracellular fluid and intracellular fluid, of which intracellular fluid accounts for about 2/3 of human body. Water is the main component of human body, accounting for about 60% of human body fluids. Reasonable drinking water can not only strengthen the body, relax the mind and increase wisdom, but also prevent aging, prolong life, beautify and detoxify.

Drinking 1-2 cups in the morning can clean up the garbage in the body, prevent prostate infection, protect renal function, reduce blood viscosity, promote blood circulation and prevent the formation of blood embolism;

Drinking water within an hour before meals can induce gastric acid secretion and help digest food.

Drinking plenty of water in winter can also keep the lung tissue moist and the lung function can contract freely. It can also relieve the symptoms of patients with bronchitis, emphysema, cor pulmonale, tuberculosis and coronary heart disease. Scientific research has proved that drinking water at one time should not be too much, and a small amount can be used many times. Don't wait until you are thirsty to drink water, take the initiative to drink water.

There are four times in a day when people are most prone to dehydration, so they need to drink water to replenish water. These four times are called "the best drinking time". You need to drink about 2000 ml of water for four times. These four times are: after getting up in the morning, around 10 in the morning, 3-4 in the afternoon, and before going to bed at night.

Three, water and health-six tips for drinking water

Drink when you are thirsty-drink as much water as possible before going out in the morning. Breakfast includes milk and porridge.

Chew slowly-when you are thirsty during the journey, you can only drink a few mouthfuls of water or tea intermittently, and avoid "binge drinking" to avoid destroying the balance of water and salt in your body.

Drink with pulp instead-if you are hungry on the way, you may wish to drink with mung bean soup, eight-treasure porridge and other pulp instead, which is more in line with physiological requirements.

Don't be greedy for cold drinks-when you are hot and thirsty, don't be greedy for cold drinks such as ice cream and iced soda, otherwise the more you eat, the more thirsty you are, which will easily hurt your spleen and stomach.

Ask for spring water to drink-try not to drink natural water in the wild, and only drink spring water in the mountains as a last resort, not river water, snowmelt water or roadside streams.

Drink when you come back-drink tea slowly before going home to take a shower at night, and continue drinking after dinner until you urinate.

Four, summer drinking water matters needing attention

Traveling in summer, it's hot and cold, sweating a lot when walking, thirsty easily, and you need to replenish water properly, but drinking water during the trip is very knowledgeable.

1. People who want to drink a proper amount of light salt water when traveling are prone to sweating after exercising on the road. When the human body sweats a lot, sweat will take away a lot of inorganic salts, such as sodium, potassium and magnesium. Therefore, it is necessary to drink some light salt water during the trip. 1 g salt and 500 ml water can supplement the body's needs and prevent electrolyte disorder.

Second, drink more water during the journey, be less thirsty during the journey, and don't drink too much at a time. Drink water several times, not more than one liter per hour. It is advisable to drink 100 ~ 150ml every time, and the interval is 1 hour.

Third, the temperature of drinking water. In summer, the temperature of tourists is usually high, and a large number of cold drinks can easily cause digestive system diseases, because at this time, due to the accelerated blood circulation, the gastrointestinal tract is relatively ischemic. Don't drink drinks below 5℃. It's better to drink cold boiled water around 10℃, which can achieve the purpose of cooling down and quenching thirst.

Fourth, it is also important to supplement sugar water in moderation. Because strenuous exercise such as wading through mountains and rivers consumes a lot of calories during the journey, the sugar stored in the body can't meet the needs of exercise. Therefore, when participating in large-scale exercise and long-term exercise, drink some sugar water appropriately to replenish energy consumption in time. Finally, don't drink raw water on the way out to avoid getting sick.

In summer, don't wait for thirst to drink water.

Under the condition of high temperature, due to excessive sweat secretion, salt loss, a large number of body fluids are taken away, leading to blood concentration, blood volume decline, cell dehydration, and heatstroke symptoms. The effective measure to prevent and overcome this "drought" is to supplement water and salt in time and in a proper amount to maintain or re-establish the metabolic balance of water and salt in the body.

So, how to drink water in summer is scientific?

1. Develop good drinking habits. Don't wait until you are thirsty, upset or have a headache. This phenomenon shows that the body cells have been dehydrated and are on the verge of heatstroke. To develop good drinking habits, drink more water between meals a day according to your own physique and possible water consumption. Adults should drink about 2,500-3,000 ml of water every day, especially children and workers in high temperature. Of course, we should pay attention to drinking high-quality pure water.

Drinking salt and boiled water in moderation is also a good way to prevent heatstroke. Human sweat contains a lot of salt, which is lost due to excessive sweating due to labor or exercise. Sometimes drinking water can't quench thirst. The root cause is the insufficient supply of salt, which is generally 0.2-0.3%.

3. Drink more water on an empty stomach in the morning, and drink more water on an empty stomach in the morning. According to American scholars, after a night's sleep, the gastrointestinal tract of ordinary people has been emptied, and the purified water they drink can be quickly absorbed by the human body. After water enters the blood vessels, it helps the human body to dilute blood and "wash" various organs and tissues in the body, thus promoting human metabolism and enhancing immune function.

4, breakfast is also heatstroke prevention.

5. Drink milk, soybean milk, mung bean soup, gruel, etc. Because breakfast can satisfy hunger and replenish water. Drinking sour plum soup, tomato soup and fresh fruit juice before and after meals can not only supplement vitamin C in time, but also prevent heatstroke and maintain the normal metabolism of the body.

Six, drinking water and health tips

When water loss accounts for 2% of body weight, people will feel thirsty, and when water loss reaches 20%, they will die. The human body discharges about 2000 ml of water every day, so it needs to take in the same amount of water every day to keep the water balance of the human body. The way for human body to replenish water is mainly through food and drinking water. You can consume about 800 ml of water for three meals a day, so you still need to drink about 1200 ml of water every day. Don't wait until you are thirsty to drink water.

Drink more water after sweating.

Don't drink too much water at one time when sweating heavily, otherwise it will increase the burden on the heart and cause palpitation, shortness of breath and sweating. Sweating a lot will make your body lose a lot of salt. If you drink a lot of water, it will dilute the salt in the blood and increase sweating. Sweat will take away salt and people will want to drink water. When sweating a lot, the blood vessels in the gastrointestinal tract of the human body are in a state of contraction, and the absorption capacity is poor. Drinking a lot of water is easy to accumulate in the gastrointestinal tract, which makes people feel sultry and can cause indigestion. Therefore, it is not advisable to drink too much water after sweating heavily. You should rinse your mouth with water first, and then drink some salty boiled water. You can increase the amount of drinking water after a while.

Drink a glass of water in the morning and evening.

Get up in the morning and get into the habit of drinking water. A lot of science shows that many patients with cardiovascular and cerebrovascular diseases often die suddenly in the morning. The main reason is that middle-aged and elderly people are prone to hypertonic dehydration. Another important reason is that after a night's rest, blood viscosity increases, blood volume is insufficient, and microcirculation stagnates, which easily leads to poor blood flow and high blood pressure. So you must get into the habit of drinking water in the morning. Drinking a glass of water before going to bed can also dilute blood and reduce blood viscosity. Waking up in the middle of the night with a glass of water beside the bed is also a good way to keep fit.

Drinking too much water is easy to get digestive tract cancer.

Some people think that drinking hot water to quench thirst, in fact, often drinking overheated water will cause inflammation of the mouth, esophagus or gastric mucosa. Modern medicine believes that inflammation is often the early stage of canceration, and long-term inflammation can cause mucosal qualitative change and canceration. Therefore, overheating of drinking water and food is considered as the physical factors of upper digestive tract cancer.

Master the correct drinking method

The really effective way to drink water is to drink a whole glass of water (about 200-250 ml) in one breath (or at a time), instead of just drinking twice, so that the body can really absorb it. Of course, you don't have to drink it all at once. If you just take a sip or two to "quench your thirst", it will not help your body at all.

Drink good water: only drink healthy water.

Drink warm water: In hot summer, many people will choose to drink ice water or add ice cubes to the water. In fact, ice water is not good for the function of the stomach, and drinking warm water is more beneficial, because it is especially helpful for the body's absorption and utilization, and it is more helpful for gastrointestinal digestion and avoids destroying the body's immunity.

Drink on an empty stomach: Of course, you can drink water at any time. Drinking when you are thirsty can only quench your thirst, but it won't help. The effective drinking method is to drink on an empty stomach, and the water will flow directly from the digestive tract and be absorbed by the body; Drinking water after meals is not as good as drinking water on an empty stomach. Give it a try!

Three. Hygiene and health of drinking water

At least 50,000 people in the world die from various diseases caused by water pollution every day, and more than 25 million people in developing countries die from unclean water every year. Niu Sheng Mao, Minister of Water Resources of China, recently warned that if we don't act quickly, China will run out of clean drinking water within 30 years. The change of human drinking water from natural water to tap water, bottled purified water and household terminal water (pure water machine) is the progress of human drinking water and the inevitable requirement of improving people's living standards. The change of drinking water from natural water to pure water is a leap and progress of human public health. The requirements of human beings for drinking water are firstly sanitary and harmless, and the pollutants contained, whether biological or chemical, should be controlled within the scope of ensuring human health and meet the standards formulated by the state; Secondly, it tastes good. Since it is drinking water, people are unwilling to accept it if it tastes bad. Anyone who meets the above two requirements is qualified drinking water.

The main function of water is to maintain the water balance of human body, that is, "quenching thirst". Nutrients needed by human body, except water, mainly come from food and dietary supplements. The mineral nutrients provided by drinking water are very limited. Therefore, the nutritional survey data of various countries have not estimated the nutritional composition of drinking water. This is not to deny the benefits of nutrients contained in drinking water, but to say that the amount it provides accounts for a very small share of the whole human nutrient intake, so it does not need to be estimated, and its contribution to the minerals needed by the human body is very small. What's more, many so-called mineral water and nutrient water sold in the market at present are simply filtered from ordinary well water and reservoir water, and the harmful (polluted) substances contained in them are really not worth the candle compared with nutrition.

Pure water is also called "space water" because it was first drunk by American astronauts. It is the raw water filtered by the world-advanced RO reverse osmosis water treatment, producing water that can be directly drunk without heating. Does not contain any impurities, is non-toxic and sterile, has pure quality, is sweet and refreshing, and is beneficial to human body. Most experts in China are optimistic about the pure water market. In the mid-1990s, they will occupy the drinking water market more quickly, with broad prospects. Some people even think that "this will be a revolution in drinking water". Judging from the current market share of aquatic products in large and medium-sized cities in China, pure water machines are dominant, and there is even a saying that "bottled water is better than milk and pure water machines are better than cows", which shows the vigorous vitality of this emerging industry. Studies by medical experts and nutrition experts show that drinking purified water for a long time can reduce the incidence of urinary system diseases by 60%, cardiovascular diseases by 40% and cancer by 20%.

Fourth, we should attach great importance to drinking water hygiene.

Water is the most precious resource of mankind, but with the development of industry, the pollution of drinking water sources in the world is becoming more and more serious, and the crisis of human drinking water is becoming more and more serious. Before 1950s, the water source was mainly polluted by pathogenic microorganisms, causing outbreaks of cholera, typhoid fever and hepatitis A; In the middle of the 20th century, the water source was polluted by heavy metals, causing Minamata disease and osteopathy. Since 1970s, the organic pollution of water has become increasingly serious. 222 1 kinds of organic compounds have been detected in water in the world, and 767 kinds have been detected in American tap water, of which 109 kinds are mutagenic, carcinogenic and carcinogenic. A total of 400 organic compounds were detected in Huangpu River in Shanghai. From a national perspective, pathogenic microorganisms, heavy metals and organic matter coexist in water, and the situation that drinking water pollution is harmful to health is grim.

Problems existing in drinking water hygiene in China: It is estimated that there are still 900 million people whose total coliforms in drinking water exceed the standard, 380 million people whose iron content exceeds the standard, 200 million people whose oxygen consumption exceeds the standard, and 9.48 million people whose fluorine content exceeds the standard.

As far as urban tap water is concerned, the traditional tap water treatment process has its limitations. The conventional drinking water treatment process of coagulation, sedimentation, filtration and chlorination for 200 years was adopted in the water plant to remove turbidity, improve sensory properties and achieve good sterilization effect. Drinking qualified tap water is safe in epidemiology. However, when the water source is polluted, the conventional tap water treatment process has its limitations.

Tap water has the following problems: it is difficult to eliminate chemical pollutants by conventional drinking water treatment, and it can not effectively remove organic pollution in water. Chlorination disinfection in conventional drinking water treatment may produce carcinogenic chlorination by-products.

Water supply network and secondary water supply pollution. The pipe network is old and rusty; The pipe network is damaged and the maintenance is polluted. The drainage pipe of underground reservoir is inverted siphon, the high water tank is exposed, the accumulated water causes microbial reproduction, and the storage corruption causes secondary water supply pollution. With the improvement of China's per capita economic level and living standard, the consciousness of self-protection has higher requirements for drinking water, and drinking water hygiene should be highly valued.

5. Did you drink enough water?

Water is the most necessary substance for survival. A normal adult is 60%-70% water. We can live for two months without food, but we can only live for a few days at most without water. However, many people don't know how much water to drink every day. In fact, many people are dehydrated.

Without water, we will be poisoned by the waste produced in our bodies. Urine and urea produced by the kidneys must be soluble in water. If there is not enough water, the waste will not be completely removed and may accumulate into kidney calculi. Water is also very important for chemical reactions, digestion and metabolism in the body. Water transports nutrients and oxygen to cells through blood, cools the body through perspiration, and lubricates joints.

We still need water to breathe. The lungs must be moist to absorb oxygen and expel carbon dioxide, and exhale 1 pinto of water every day (liquid volume weighs 0.568 liters).

Therefore, if you don't drink enough water, you can't meet the needs of all aspects of physiology. Dr. Fokker, an expert in California, said: "If you don't drink enough water, you will become fat, the elasticity of your muscles will deteriorate, the digestive effect and antibody tissue function will decrease, toxins will accumulate, muscles and joints will be painful, and you will have trouble urinating." Proper amount of water is also important to lose weight. Dr. Super Dong from the Nutrition Research Center said: "If people want to lose weight and don't drink enough water, then their body fat can't be metabolized well, and insufficient water will hinder the normal flow of fluids in the body during metabolism, thus gaining weight."

So, how much water does a person need to drink a day?

Dr. Fogg said, "To stay healthy, you should drink at least 8- 10 glasses of water every day (each cup weighs 250g). If you are exercising or the weather is hot, you must drink more water. Fat people should drink plenty of water, and you can ask a doctor in some cases. "

At the International Sports Medicine Center, people have developed the formula of drinking water:

When not exercising: 2 kg per person per day (8-10 cups).

When doing exercise: 3 kg per person per day (13- 14 cups)

You should drink water during the day and at night.

You may ask: I drink so much water, don't I just run to the toilet? Yes, but after a few weeks, your bladder will adjust itself and urinate less and less.

Drink 8- 10 glasses of water every day and you will have a healthy and strong body.

Six, water and health-how much do you know?

Five standards of healthy water

1, which does not contain any toxic, harmful or odorous substances;

2. The hardness of water is between 30 and 200 (calculated by calcium carbonate);

3. The mineral content needed by human body is moderate;

4. The 4.PH value is weakly alkaline (7-8);

5. Moderate dissolved oxygen and carbon dioxide in water (solubility, permeability, metabolism, emulsifying power, cleaning power, etc. ) are stronger.

Water and heart disease

First of all, there is a certain relationship between the hardness of water and the death rate of heart disease. We should try to drink water with a hardness of about 170MG/L, which is ideal. Secondly, there is a clear relationship between TDS (total dissolved solids) and heart disease mortality. The higher the TDS, the lower the heart attack rate. Proper hardness and TDS in water are two beneficial characteristics of healthy drinking water. Therefore, ideal drinking water can reduce cardiovascular mortality 15%.

Chlorination disinfection method

JOSEPH PRICE, MD, found through research that "the essential cause of atherosclerosis is chlorine, and chlorine is also related to it, such as heart failure and the most common form of sclerosis. In the process of chlorination, chlorine combines with natural organic matter and humus to form potential carcinogen trihalomethane (THM'S). Trihalomethane generally includes carcinogens such as chlorine and Australia. Theoretically, the total content of THM in our drinking water is limited by EPA. Although the maximum amount allowed by law is 100PPB, in fact, most municipal water supply systems exceed this limit.

Water and cancer

There are four elements in drinking water that can help us prevent cancer. They are TDS, hardness, PH and silica. It is found that drinking water contains a proper amount of TDS (about 300 mg/L). It is hard water and alkaline (PH value is greater than 7. 0), and contains 15MG/L of silica, the number of cancer deaths will be reduced by 10-25%. Therefore, drinking high TDS and high hardness and alkalinity will reduce the incidence of heart disease and cancer.