Question 2: Why do people need to supplement salt every day? Salt is an indispensable substance for our human body. Salt is composed of sodium ions and chloride ions, which participate in almost all human activities. Sodium ion transmits information to human nerve cells, and chloride ion can help the human body play an antibacterial role when sweating, so the human body cannot do without salt. In ancient times, salt was an extremely precious thing and a symbol of wealth. It was called "platinum". Swiss medical scientist Barra Celsus once said, "People must eat salt ... Where there is no salt, everything will rot." With the development of science and technology, medical experts have confirmed that too much salt is harmful to human body, which will cause high blood pressure and damage important organs such as heart, brain and kidney. For example, residents in northern Japan eat 26 grams of salt every day, and the incidence of hypertension is 40%; Indigenous people in some parts of Africa eat salt 10g every day, and the incidence rate is 8.6%. Eskimos eat less than 4 grams of salt every day, and no hypertension patients are found in the population. Therefore, developed countries in Europe and America launched the "Salt Resistance Movement" in the 1950s, asking people to eat less salt. Now many medical media are still promoting that less salt is good for human health. In the media propaganda with different opinions, people are a little afraid of salt, and some even dare not eat it. Whether to eat salt or not, the answer is yes: you must not eat it, let alone eat it. So, how much salt should everyone eat? According to the recommendation of the World Health Organization, the daily salt consumption of the general population is 6-8g. The Dietary Guidelines for China Residents advocates that the daily salt intake of each person should be less than 6 grams. For patients with mild hypertension, the American Committee on Nutrition and Human Needs recommends that it be controlled at 4 grams. This standard is also applicable to patients with cardiovascular and cerebrovascular diseases in China. Here is a rough calculation method. After you bought 500 grams of salt, write down the date when you bought it, and then write down the date when you finished eating this 500 grams of salt. Then, you will know how many days you have eaten this 500 grams of salt. Divide the amount of salt you eat by the number of days you eat salt, and then divide it by the number of people who eat at home, and you can roughly get the per capita salt intake. If three people in your family bought 500 grams of salt and ate it for 20 days, how much salt did they eat on average every day? 500 grams ÷20÷3 people = 8.3 grams. The amount of salt in your home exceeds the amount that is beneficial to your health, so you should pay attention to reducing the amount of salt. Another problem that we should pay attention to is that soy sauce is another main source of salt in our diet. Therefore, when calculating the amount of salt, we should also add the amount of salt ingested through soy sauce, and the calculation method is the same as above. But to be clear, the salt content in soy sauce is about 18%. You only need to multiply the amount of soy sauce by 18% to get the salt intake per capita by eating soy sauce. Add this amount to the amount of salt, which is the daily average salt amount of everyone in your family. For your health, please pay attention to the daily salt intake.
Question 3: Why can't human beings live without salt? Without salt, the physiological balance will be disordered, and dizziness, nausea, vomiting and even shock will occur. Animals cannot live without salt. Many herbivores get salt from plants and salt water in salt marshes, while carnivores get salt from the flesh and blood of the animals they hunt. Generally speaking, salt is the salt in daily life-NaCl. It is the main substance to maintain the balance of body fluids. So far, scientists have not found any creatures that don't need salt.
Question 4: Why can't human beings live without salt, but herbivores don't? Salt is really indispensable to human body. Otherwise, why do people go to the hospital to "hang salt water" when they are sick? When people can't eat normally, if there is no sugar intake, there may be "hypoglycemia" reactions, such as palpitation, shaking hands, cold sweat, and even starvation. If there is no salt intake, they may suffer from "low sodium syndrome", which is characterized by weakness and bloating. There is also "low chlor-alkali poisoning", which is characterized by vomiting, shortness of breath and even coma. So it's the same as sugar intake.
Usually, the concentration of water in human tissues is 0.9%, that is, 100 ml of water contains 0.9 g of salt.
Salt is not only an indispensable condiment in people's diet, but also an indispensable material component in human body. Its main component is sodium chloride, which is a neutral inorganic salt. Its taste is salty and cold, and it enters the stomach, kidney, large intestine and has the functions of clearing away heat and toxic materials, cooling blood and moistening dryness, nourishing kidney and relaxing bowels, killing insects and diminishing inflammation, inducing vomiting and stopping diarrhea.
Question 5: Why can't we live without salt? This question reminds people of the white-haired girl involuntarily. This woman, who has lived in the mountains and forests for more than ten years, has all turned white and her eyesight has obviously decreased. Why did she become like this? Some people blame the lack of salt. Some experts pointed out that salt deficiency not only leads to disease, but also leads to death. Practice and scientific research show that what experts say is true. It is puzzling, however, that before humans learned to make salt, our ancestors had propagated on the earth for several generations, and the lack of salt did not seem to bother them. Why is this? "People can't live without salt, just like fish can't live without water." Today all land animals come from the sea. The ocean creates life and determines some life forms. So almost all animals on the earth contain salt, which is sodium chloride. The concentration of sodium chloride in body fluids such as blood and sweat of animals is almost the same as that of seawater. Many people have had the experience of hanging water. When hanging water, the medicine is mixed with physiological saline and input into the human body. Physiological saline is actually a 0.9% sodium chloride solution. Why is it named "normal saline"? Experts say that's because the concentration of sodium chloride in physiological saline is the same as that in human body, and its osmotic pressure is roughly the same as that in plasma and tissue fluid of normal people, so it can be used for fluid replacement and other medical purposes. Sodium ion in salt is an essential substance for the nervous system to transmit information, and muscle contraction and heart beating are related to sodium ion. Therefore, if the human body is short of salt, the nervous system will be weak and people will be weak. People cannot live without salt. Eating too little salt can also lead to low sodium content in the body, loss of appetite, weakness of limbs and dizziness. In severe cases, there will be anorexia, nausea, vomiting, increased heart rate, weak pulse, muscle spasm, blurred vision, weakened reflex and other symptoms. Low salt content in the body may even lead to the germination of cancer. Because of insufficient salt intake, some cells will accumulate acid, and the intracellular acid content is too high, which will destroy the structure of DNA. Salt deficiency is one of the causes of osteoporosis. A certain amount of salt must be guaranteed in the blood. If there is not enough salt, it will be extracted from the bones. Feeling muscle cramps at night is often a sign of salt deficiency. When sweating and excreting, some salt will be excreted with sweat and urine. Dizziness and fainting may also be due to lack of water and salt in the body.
Question 6: Why do people eat so much salt as an important condiment in human life? Because salt will be lost in many ways, it is essential to restore salt in order to survive. In a certain historical period, salt plays an important role in society. Why can't people live without salt? Salt consists of 40% sodium and 60% chlorine. Sodium and its equally important partner-chlorine are the main regulators to maintain the balance between water and extracellular dissolved substances. Sodium ion, chloride ion and potassium ion in intracellular fluid. It can regulate the volume, osmotic pressure and acid-base balance between cells and blood, and maintain the normal structure and function of cells. The lack of sodium in the body will affect the absorption of amino acids and sugars by cells and reduce the secretion of gastric juice.
Question 7: People cannot live without salt. How did the ancient inland people solve it? First, ancient water transport was very developed, that is, trade was conducted by waterway. Salt was state-owned and controlled the economic lifeline, so it was highly valued in China.
The second is well salt, such as digging wells to make bottom salt in ancient Sichuan.
Third, rock salt, the accumulated mineral sodium crystals.
Question 8: Why do people eat salt? What happens when you eat a lot? 1 Human body fluids should maintain a certain saline-alkali balance. When there is too little salt in the cell, he will discharge water out of the cell and his body will be affected. Yang Bailao and the white-haired girl, whose hair turned white because she didn't eat salt for a long time in the mountains. Another fact is that most of the salt is now iodized, and insufficient intake will lead to goiter.
Question 9: Why can't people live without salt? Salt is an indispensable substance for human survival, and its importance is self-evident. In the famous Oxford English Dictionary, nearly four pages are devoted to the explanation of "salt", which greatly exceeds the explanation of other foods. Ordinary salt, also known as "salty salt", is made of sodium chloride, with high sodium content and low potassium content. Salt has a long history in China. According to historical records, the legendary Chiyou fought fiercely with the Yellow Emperor in the land of Zhuolu, and was chased and cut down by the Yellow Emperor. Because Chiyou was guilty, the people ate his blood. This is the origin of China's ancient saying that "salt" is "the blood of Chiyou". For a long time, salt was once a rare and precious thing, and the ancient Romans called it a "healthy crystal". Historically, the ancient Romans and ancient Greeks used salt to buy slaves, and the phenomenon of using salt as currency was also common in Africa. Many ethnic groups in our country have legends about salt. As early as 5,000 years ago, people in China used seawater to make salt. In the Western Zhou Dynasty, lake salt had been produced on a large scale in the boundary pool of Yuncheng, Shanxi Province. At the end of the Warring States period, Sichuan began to make salt by manual chiseling. With the development of salt industry, salt-related words such as "salt man", "salt official", "salt cart" and "salt money" frequently appear in ancient books such as Zhou Li, National Policy and Historical Records. During the reign of Emperor Wu of the Han Dynasty, a "salt policy" was established to specialize in salt policy, and a salt law was formulated to prohibit private use of salt. In the Tang Dynasty, a "salt and iron envoy" was established to manage salt monopoly. There was a "salt envoy" in the Yuan Dynasty, and there was a similar official position from the Ming and Qing Dynasties to the Beiyang period. During the democratic revolution, there were many stories about salt in the army and base areas led by China. 1May, 946, Luchang Salt Administration Bureau was formally established in the Shanxi-Chahar-Hebei Border Region, stipulating that "all salt administration matters within the scope of Luchang in the future shall be under the unified management of this bureau". The Interim Measures for Business Tax in Shanxi-Hebei-Shandong-Henan Border Region stipulates that "salt industry" is tax-free. Only three months after the founding of New China, the National Salt Affairs Conference was held in Beijing, which defined the principles and tasks of the national salt affairs work. In addition to sea salt, pond salt and well salt, there were varieties of earth salt, rock salt and sand salt in ancient China. Nuzhen, who lives in the northeast of China, produced leaf salt, and a kind of "crystal salt" was discovered by ethnic minorities in the northwest in ancient times. It is said that this kind of salt is mostly produced on rocks, colorless and transparent, and it is painless to eat. Li Shizhen called this salt "Kai" in Compendium of Materia Medica. There are many records about the function of salt in Chinese ancient books. For example, salt has the effects of "reducing fire, moistening dryness and expelling wind", "wiping teeth and fixing teeth, clearing away heat and infiltrating dampness" and "treating beriberi exclusively". In modern times, salt is more widely used. According to the statistics of relevant departments, there are as many as10.4 million kinds of products related to salt, and food, chemical industry, smelting, ceramics, glass, medicine and other industries are inseparable from salt. At present, the output of potash fertilizer in China is less than one tenth of the demand, and it takes a lot of foreign exchange to import potash fertilizer every year. The proven reserves of potash fertilizer in Qaidam Basin in Qinghai account for more than 90% of the country, which has become a potential economic growth point for the development of the western region. As the largest crude salt production base in China, Shandong Province has an annual crude salt production capacity of 8 million tons, accounting for about a quarter of the total national output. In addition to raw salt, Shandong's salt chemical industry and salt mariculture are also among the best in the country. The main products are refined salt, all kinds of bromine-based deep-processed products, soda ash, prawns, shellfish and Yantian organisms, and more than 60 varieties. With the progress of society and the improvement of people's living standards, there are more and more kinds of edible salt in the market. People will find all kinds of salty foods, such as low sodium salt, seasoning salt, spicy salt, pepper salt, soup salt, health salt and so on. Salt is a necessity for human life. It has the functions of regulating the balance and distribution of water in human body and maintaining the balance of body fluids. Proper intake of salt is good for health. In recent years, in order to prevent iodine deficiency disorders, China has implemented universal salt iodization. At present, salt is a state monopoly commodity, and iodized salt is also produced by a salt company designated by * * * to ensure that qualified iodized salt can be provided to the people. Salt has been with mankind for a long time. In the process and development of human civilization, people have a new understanding of the other side of salt. Experts believe that long-term excessive salt can lead to cardiovascular and cerebrovascular diseases such as hypertension, stroke and coronary heart disease. The World Health Organization recommends that the best daily salt for healthy people should not exceed 6 grams. Long-term salt intake below 6 grams can reduce the systolic blood pressure of people aged 25 to 55 by 9 mm Hg, and the mortality rate of coronary heart disease can be reduced by 16% by the age of 55. Some experts therefore put forward: "Stay away from heights ... >>"
Question 10: Why do people need to supplement salt every day? Salt is an indispensable substance for our human body. Salt is composed of sodium ions and chloride ions, which participate in almost all human activities. Sodium ion transmits information to human nerve cells, and chloride ion can help the human body play an antibacterial role when sweating, so the human body cannot do without salt. In ancient times, salt was an extremely precious thing and a symbol of wealth. It was called "platinum". Swiss medical scientist Barra Celsus once said, "People must eat salt ... Where there is no salt, everything will rot." With the development of science and technology, medical experts have confirmed that too much salt is harmful to human body, which will cause high blood pressure and damage important organs such as heart, brain and kidney. For example, residents in northern Japan eat 26 grams of salt every day, and the incidence of hypertension is 40%; Indigenous people in some parts of Africa eat salt 10g every day, and the incidence rate is 8.6%. Eskimos eat less than 4 grams of salt every day, and no hypertension patients are found in the population. Therefore, developed countries in Europe and America launched the "Salt Resistance Movement" in the 1950s, asking people to eat less salt. Now many medical media are still promoting that less salt is good for human health. In the media propaganda with different opinions, people are a little afraid of salt, and some even dare not eat it. Whether to eat salt or not, the answer is yes: you must not eat it, let alone eat it. So, how much salt should everyone eat? According to the recommendation of the World Health Organization, the daily salt consumption of the general population is 6-8g. The Dietary Guidelines for China Residents advocates that the daily salt intake of each person should be less than 6 grams. For patients with mild hypertension, the American Committee on Nutrition and Human Needs recommends that it be controlled at 4 grams. This standard is also applicable to patients with cardiovascular and cerebrovascular diseases in China. Here is a rough calculation method. After you bought 500 grams of salt, write down the date when you bought it, and then write down the date when you finished eating this 500 grams of salt. Then, you will know how many days you have eaten this 500 grams of salt. Divide the amount of salt you eat by the number of days you eat salt, and then divide it by the number of people who eat at home, and you can roughly get the per capita salt intake. If three people in your family bought 500 grams of salt and ate it for 20 days, how much salt did they eat on average every day? 500 grams ÷20÷3 people = 8.3 grams. The amount of salt in your home exceeds the amount that is beneficial to your health, so you should pay attention to reducing the amount of salt. Another problem that we should pay attention to is that soy sauce is another main source of salt in our diet. Therefore, when calculating the amount of salt, we should also add the amount of salt ingested through soy sauce, and the calculation method is the same as above. But to be clear, the salt content in soy sauce is about 18%. You only need to multiply the amount of soy sauce by 18% to get the salt intake per capita by eating soy sauce. Add this amount to the amount of salt, which is the daily average salt amount of everyone in your family. For your health, please pay attention to the daily salt intake.