How much water do people have to drink a day to stay hydrated

In general, you should keep 8 glasses of water a day.

The claim that we should drink 8 glasses of water a day is largely due to a report published in 1945 by the Food and Nutrition Committee of the National Academy of Sciences, according to which we need to replenish one milliliter of water for every calorie we eat. This means replenishing 2,500 ml of fluid per day, which is equivalent to 8 glasses of water.

A few years ago, Heinz Waltin, a kidney specialist at Dartmouth Medical School, decided to conduct a study to see if there was a scientific basis for the recommendation to drink eight glasses of water a day. After flipping through the articles of many of his peers, he concluded:

For healthy adults who live in temperate zones and exercise lightly, there are no scientific studies to support this 8-glass water theory.

In fact, following this recommendation, or taking more of it, "can even be harmful, because not only can it be dangerously low natremia, but it can also expose people to pollutants and make people feel guilty for not drinking as much water." He wrote in a review chapter of the American Journal of Physiology: Management, Integrative and Comparative Physiology.

Dr. Naohiko Imai, who works as an assistant professor in the Department of Nephrology and Hypertension at Santa Mary's Medical University Hospital in New York, said that in addition to the water you drink, the water contained in food and the water produced in your body are also ingested.

In this way, there is no need to drink 8 glasses of water in 1 day. He recommends drinking 1 1000 ml of water a day. Occasionally, for a few days, it doesn't matter if you only drink 500ml of water a day.

The kidneys are smart organs that automatically keep their bodies hydrated when they don't drink water. If you drink too much water, it will automatically excrete excess water. Those who eat well, even if they drink 6000 ml of water a day, the excess water will be excreted by the body.

Why do you need to drink water? How much water should we drink in a day?

A person can live for 3 weeks without food; Without water, it can survive for 3 days. For the human body, water is second only to air.

Water is the most abundant substance in the human body. 60% and 70% of an adult's body weight is water. The main component of blood is water, and our muscles, lungs, brain, and other tissues and organs also contain a lot of water.

Water is a good solvent for many minerals, vitamins, glucose, amino acids and other nutrients, and of course it is also good for dissolving metabolic waste products such as urea. Water transports nutrients into cells, transporting metabolic waste products from the body, ensuring that substances are exchanged between cells, interstitial fluids, and capillaries. This is important for the maintenance of cellular homeostasis.

Water is also the main component of the thermoregulatory system, the heat generated by energy metabolism in the body is transmitted to the surface through body fluids, and the excess heat is taken away by evaporation or perspiration to keep the body temperature constant.

In addition, water is also involved in the formation of various mucus, such as joint lubricants, saliva, gastrointestinal mucus secreted by the digestive tract, mucus in the respiratory airways, and mucus in the genitourinary tract, which play an important lubricating role in the human body. When walking or running, water tends to act as a "buffer" to maintain cell morphology, a function that plays an important role in protecting our brain and spinal cord.

It is advisable to drink water several times at different times of the day, and the principle is to drink a small amount of about 200 ml each time. During sleep, although we don't feel the body's activity, we also lose a lot of water. Even if you don't feel thirsty after waking up, your blood will become sticky due to lack of water.

When water intake exceeds the kidneys' ability to excrete (liter hours), it can cause excess water in the body or water intoxication, which can lead to hyponatremia. Water poisoning is rare in normal people, and those with conditions such as kidney and liver disease and congestive heart failure are prone to water poisoning in hot environments.

Generally speaking, the human body needs about 2000 ml of water every day, it should be better, usually pay attention to drinking more water, according to their own specific situation to observe and adjust is better, to avoid drinking less water for a long time, causing the body to lack of water, regularly go to the hospital for further examination and diagnosis, observe the specific manifestations for symptomatic adjustment, pay attention to strengthening nutrition, pay attention to eating more liquid diet.

The amount of water a person drinks every day depends on the amount of exercise and the structure of food. If you regularly eat vegetables, fruits, and drink porridge, you can reduce the amount of water you drink by supplementing more water in your diet. In addition, when you exercise a lot of work, or when the ambient temperature is high, there will be an increase in sweating, and you need to increase the amount of water you drink.

Under normal circumstances, the human body needs about 2500 ml of water per day, minus the amount of water replenished in food, which is the amount of water needed, generally 1000-1500 ml.

Drinking more water is good for the human body, and the average daily water requirement of adults is more than 2500ml, of which about 1500-2000ml** is consumed in direct drinking water, and the rest is ingested from food. The human body normally needs to replenish about 2000ml of water a day, and it needs to be replenished more in summer or during strenuous exercise, and at the same time, it is also necessary to pay attention to replenishing electrolytes and vitamins that are excreted from the body with sweat.

Many people have the misconception that drinking more water is better, drinking too much water will increase the burden on the kidneys and heart, will cause edema of the body, and even cause organ failure, so for ordinary people, the maximum amount of drinking water per day should not exceed 5000ml, unless it is in a lot of exercise, physical activity or hot days to drink more water does not matter, but also to promote excretion. When drinking water, try to drink more during the day and less at night, because drinking too much at night will also aggravate the disorder of kidney excretion and lead to edema, so choose the appropriate amount to drink according to the specific situation.

Drink too much, and don't drink too much.

Generally speaking, the amount of water lost by the human body every day through urine, sweat or evaporation is about 1800 2000 ml, so it has always been believed that about 2000 ml of water needs to be replenished every day. But this 2000ml of water is not necessarily obtained by drinking water, and the various foods we eat every day contain a lot of water, which should be counted together.

Therefore, after deducting the 1000 to 1200 ml of water intake from food in three meals, we only need to drink another 1500 ml of water every day, which is enough. The general rule is: no less than 500 ml a day, but no more than 3000 ml a day.

People who need to drink more water, such as gout and kidney stones, should follow their doctor's advice.

Adults who are engaged in light physical activity living in mild climates need to drink 1500-1700 ml of water per day.

When we lose more water when we are active, we should increase our water intake. For a short period of exercise, an additional 400 600 ml of fluid can be replenished to make up for the lost water; However, if you do strenuous exercise that lasts more than 1 hour, you need to drink more fluids. In addition, the hotter environment makes perspiration increase, and turning on air conditioning or heating indoors or on the plane can cause the evaporation and loss of water in **, and it is also necessary to increase the amount of water intake.

Drinking alcohol will speed up the metabolic response in the body, so that the amount of urine output increases, and there is no fixed amount of increased water intake that should be supplemented, as long as the water balance in the body is maintained.

The human body is made up of 75% water, so we have to drink water every day. Each person should drink about four catties of water a day, this amount can fully maintain the water balance in the human body, if you drink less water, it is not conducive to the healthy development of people.

Generally speaking, adults need to drink about 2500 ml of water per day to maintain normal body metabolism; Drinking too little water may lead to mild dehydration of the body, which is not conducive to the body's metabolism, resulting in an increase in blood concentration and changes in blood flow, which will affect the body's blood oxygen**, and it is easy to cause embolism over time.

People need to drink about 800 ml of water a day; If you don't drink enough water every day, it may lead to a decrease in body sweat, body fluids, and blood viscosity, which can easily lead to symptoms of irritation, urinary tract infections, and upper respiratory tract infections.

People should consume at least one liter or more of water a day. It may cause dehydration in the body, which may lead to endocrine disorders, may also cause abnormal bowel movements, and may also cause a slow metabolism, which are all consequences of not drinking water.

Everyone knows that water is the source of life, and people who don't eat for about three days will be in danger of life, and people who don't drink water for about seven days will also be in danger of life, so it can be seen that drinking water is indeed very important.

Many friends don't drink much water every day, but there are also friends who drink several glasses of water every day, so how much water is healthy?

Lao Hui is here to talk to you about some little knowledge about drinking water and lack of water in the human body.

Water Drink by Age:

1.Child. In general, about 800 ml per day for children is fine.

2 adults. Adults basically need about 1500 ml per day (you can add about 300 ml of water after exercise).

3.Lactating females.

2000 ml.

How to tell if you're dehydrated:

1.Thirst (I feel very thirsty, my body must be short of water, at this time must replenish water) 2Urine turns yellow in color.

Urine is generally light yellow in color, if it is darker yellow, then it is necessary to seize the time to replenish water) 3Dry stools.

Lack of water will basically be like this, pay attention to drinking water and eating vegetables and fruits.

4.Inability to fall asleep or have insomnia.

In the evening, drink half a glass of water, or milk, but don't drink too much.

A few points of scientific drinking water:

1.Drink small amounts of water many times.

About 150 ml each time, don't drink too much, it will cause a burden on the kidneys.

2.The water temperature is moderate, and no drinks are drunk.

Around 60 is fine, not too hot. Try not to drink drinks, ice water.

3.Control water intake for special populations.

Not everyone is suitable for drinking more water, and friends with some minor physical problems still listen to the doctor.

Finally, I wish you all health and happiness, thank you for your attention!

1500 ml to 2000 ml.

In daily life, people are faced with different living situations, which exposes their bodies to different environments and water scarcity. When people wake up in the morning, they are faced with a full night of water loss, and relevant experts recommend that people can drink about 300 ml of water.

When people are in a state of intense exercise for a long time, the water consumption in the body increases dramatically. In addition to this, in the hot summer, moisture is excreted through the pores, resulting in sweating. In both cases, the need for water is particularly high, and people should drink 2,500 ml of water at this time.

When our body maintains a relatively stable metabolic state, most people are faced with very detailed sweating and urination. In this case, people are faced with water loss. In addition, some weather conditions are relatively dry, and it is difficult for people to avoid water shortages.

If people can't get a lot of water, and the hydration and moisturizing can't be in place, it is easy to cause dry cracking. In order to ensure the water in the individual's body, we should choose a water supply of 1500 ml to 2000 ml.

As the saying goes, drinking water is good for maintaining good health. But when we consume a lot of water in a short period of time and keep the water in our body within a reasonable range, this can cause people to consume too much water, which can create a situation of going to the toilet quickly. While it is true that drinking plenty of water is good for your health, it is important to keep your daily water intake within a reasonable range.

In general, in our daily work and life, we have to maintain the water intake in the river. It ensures the body's metabolism and water loss from a large extent, which can not only improve the health of the body, but also make yourself not thirsty.

People need to drink two liters of water throughout the day. Be sure to replenish sufficient water, and at the same time, the old mask also needs to maintain the body's organic imitation balance, which can also promote digestion and absorption, and can promote metabolism.

People need to drink at least one liter of water in a day, so as to ensure the basic metabolism of their body, to promote blood circulation, and to promote gastrointestinal peristalsis.

A person needs to drink 2000 ml of water throughout the day. People have very high requirements for water, and it is necessary to drink more water every day so as to avoid problems.

People should drink 800cc-2000cc water a day, and it is best to drink enough 2000cc, because water is the foundation of the body's operation, and the lack of water in the body will cause discomfort, and drinking more water can also accelerate metabolism.

Drink 8 glasses of water a day. In this way, you can replenish enough water so that the body will not be dehydrated, and if you urinate regularly, you can also remove toxins from the body, which is a good help to the body.

This varies from person to person, and most people are about two liters a day. Because this amount can fully satisfy your life for this day.