The World Health Organization believes that insufficient selenium intake in the human body can lead

Selenium is known as the "spark of life" by the medical and nutritional circles at home and abroad, and enjoys the reputation of "longevity element", "king of anti-cancer", "guardian of the heart" and "natural antidote". The content of selenium in human tissues is one part per million, but it determines the existence of life, and its huge effect on human health is irreplaceable by other substances. Selenium deficiency will directly lead to the decline of human immunity, clinical medicine has proved that more than 40 kinds of diseases that threaten human health and life are related to human selenium deficiency, such as cancer, cardiovascular disease, liver disease, cataract, pancreatic disease, diabetes, reproductive system diseases, etc.

This problem of trace elements is really difficult to grasp. If there is less, it is not good, and if there is more, there may be more, such as heart overload, hair loss, and 25 micrograms should be ingested a day.

Selenium is one of the essential trace elements in the human body, selenium deficiency may cause cancer, if the intake is too high, it will poison people, and the enlightenment is obtained.

a. From the title, it can be seen that "the atomic number of selenium is 34", and then according to "atomic number = number of electrons outside the nucleus", it can be known that the number of electrons outside the nucleus is 34, so the statement is correct

b. From the title, it can be seen that "the atomic number of selenium is 34", and then according to "atomic number = number of nuclear charges", it can be known that the number of nuclear charges is 34, so the statement is wrong

c. From the meaning of the title, it can be known that "the atomic number of selenium is 34", and then according to "atomic number = number of protons in the nucleus", it can be known that the number of protons is 34, so the statement is correct

d. From the title, it can be seen that "the atomic number of selenium is 34, and the sum of the number of protons and neutrons is 79", and then according to "atomic number = number of protons in the nucleus", it can be known that the number of neutrons is 79-34=45, so the statement is correct

Therefore, b

The daily intake of selenium published abroad.

Country: Selenium (micrograms), UK 70, Japan 88, Canada 98-224, New Zealand 56, US 50-200, cancer prevention measures 200

Less than 67%.

Selenium deficiency refers to a lack of selenium in the human body. The manifestations of selenium deficiency in the human body are mainly hair loss and nail removal, some patients have ** symptoms, and a few patients can have neurological symptoms and dental damage.

Selenium is a trace element that the body needs. In the past, selenium was thought to be a toxic trace element, but now it has been confirmed that it is an indispensable element for the human body.

Selenium and vitamin E are both anti-peroxidants (peroxides are harmful to humans), and it has also been shown to have the best effect on malnourished children caused by protein deficiency, and it has a resistance to certain possible carcinogens. People have mild or moderate selenium deficiency whose signs or symptoms are not obvious. Diseases that may arise from selenium deficiency in the human body:

Energy deficiency malnutrition, hemolytic anemia, Keshan disease, large bone joint disease, hypertension, ischemic heart disease, liver cirrhosis, pancreatitis, fibroids, cancer, fibroids, infertility, diabetes, cataracts, etc.

Although the amount of trace elements in the human body is very small.

But it has a strong bioscience role.

Some scientists believe that human life, old age, illness and death are all related to the balance of elements in the body, and all human diseases are caused by the lack of trace elements.

Moreover, trace elements cannot be synthesized by themselves in the body, so the impact is greater.

90% of human diseases are related to a deficiency of selenium, a trace element.

Brother, what should be the correct answer?

The amount of selenium in the human body is related to more than 40 diseases such as cell carcinogenesis, decreased thyroid gland function, high blood pressure, and asthma. Selenium deficiency is the root cause of more than 40 diseases. As for the percent, there is no clear number.

Hello Kiss is happy to answer this question for you. The average intake per person in China is only 36 micrograms of selenium, which is a non-metallic element with the chemical symbol SE, and is located in the fourth period VI A (element No. 34) in the periodic table of chemical elements. It can be used as a photosensitive material, a catalyst for the electrolytic manganese industry, an essential nutrient element for the animal body and a beneficial nutrient element for plants.

There are two ways of selenium in nature: inorganic selenium and plant-active selenium. Inorganic selenium generally refers to sodium selenite and sodium selenite, which are obtained from by-products of metal deposits; The latter is made by combining selenium with amino acids through biotransformation, and generally exists in the form of selenomethionine.

Selenium is one of the scattered non-metals, crude selenium is a by-product in the copper smelting process, and the growth of selenium production has been relatively slow, and the annual amount is limited. The use of selenium is very wide, can be used in metallurgy, glass, ceramics, electronics, solar energy, feed and many other fields, and with the development of the world economy and the emergence of new application fields, the downstream demand for selenium continues to grow, to a certain extent, leading to the continuous development of selenium. However, with the continuous increase of selenium, its downstream consumption structure will continue to adjust to adapt to the changes in selenium, and it is expected that the profit margin of traditional selenium products will remain at a medium level, while the profit margin of high-end selenium products with a high technical threshold is expected to remain at a high level.

Dear, glad to answer for you. The average intake of selenium per person in our country is only how many grams of selenium; Dear, the average intake of selenium per person in China is only 36 mg, selenium can directly act on the virus, inhibit the replication of the virus in the body, and can participate in the repair of cells and prevent a variety of viral diseases. (such as hepatitis B, heart inflammation, etc.) selenium can neutralize or convert free radical substances, antioxidant, so as to remove the damage of free radicals to the human body, and have the effect of delaying aging.

Selenium has the same effect as insulin and can be used to regulate sugar in the body without relying on insulin.