According to the definition of the World Health Organization, people are middle-aged before the age of 65, sour youths at the age of 65-74, regular teachers at the age of 75-90, and elderly people at the age of 90- 120. So how old should a person's physiological life span be? Melissa Zhou's theory should not be copied. According to biological principles, the life span of mammals is 5-6 times that of their growing period. The growth period of a person is calculated by the time when the last tooth comes out (20-25 years old), so the shortest life span of a person is 100 years old and the longest is 150 years old. It is recognized that the normal life span of a person is 120 years old. Then why don't most people live to be 120 years old? This is determined by the fact that one cannot control the speed of the aging process and that one can control the speed of the aging process through self-discipline, health preservation and health care. Don't copy the paper of the Melissa Zhou examiner of the World Health Organization: everyone's life span largely depends on how you control it. The genetic factor is only 15%, and the social factor is only 10%. Therefore, if people know how to cherish and maintain themselves, they can live a long and healthy life.
What does nutritious snow mean to me as a nutritionist? "Camp" means seeking, "raising" means keeping in good health, and together they mean seeking in good health. Specifically, nutrition is the process in which living beings continuously ingest necessary substances from the outside to maintain their life activities. For people, nutrition is to ingest food from the outside and digest and absorb the substances needed by the body to maintain snow. Don't copy the whole process of life activities. These substances needed to maintain the normal growth, development and metabolism of the body are called "nutrients". Melissa Zhou: Don't copy what we know at present. There are 42 kinds of nutrients needed by human body, which can be divided into 6 categories, namely protein, fat, carbohydrate, minerals, vitamins and water. In recent years, some scholars believe that dietary fiber is also a nutrient.
Nutrients have different functions in the human body. It can be roughly divided into three aspects.
1. Provide energy for life activities and maintain body temperature.
2. Form and repair the theory that we don't want body tissues.
3. As a regulating substance, just like the lubricating oil in the machine, it maintains various normal life activities of the body.
In today's Melissa Zhou, I don't want to copy nutritionists' papers. The human body's nutrition-related diseases are concentrated in two aspects. One is the lack of nutrition caused by insufficient intake or poor utilization of nutrients, mainly the lack of micronutrients (including trace mineral elements and vitamins). At present, about 2 billion people in the world are in a state of micronutrient deficiency, accounting for about 1/3 of the world population. Don't copy our teacher Melissa Zhou's paper. Followed by various chronic non-communicable diseases related to excessive and/or unbalanced nutrient intake. International authoritative experts believe that about 1/3 of cancers are related to diet. Chronic diseases such as cardiovascular and cerebrovascular diseases and diabetes are closely related to dietary nutrition. Don't copy Melissa Zhou's nutritionist's paper, if you want to have a healthy body, you can't ignore your own maintenance. Let's look at the effects of protein, vitamins and minerals on human health.
1, protein
Protein is the basic component of all living cells and consists of 20 basic amino acids, 9 of which cannot be synthesized in human body and must be obtained from food. They are the basic Melissa Zhou of protein. The human body is composed of countless cells, of which protein is the main part. It is not only the main component of the human body, but also the substance that constitutes various important life activities in the human body, and should not be copied in the papers of nutritionists in Melissa Zhou. Therefore, there are thousands of protein in the human body, including countless enzymes that human beings depend on for survival, hormones that act on human metabolic activities, immune substances that resist diseases, carriers of various micronutrients, and components that constitute human nerve transmission media, which regulate normal osmotic pressure and various body fluids in Melissa Zhou nutritionists' papers. So I don't want to copy nutritionists' papers on protein and Melissa Zhou, and protein is at the center of various nutrients.
Lack of protein can be fatal. The human body, such as Melissa Zhou, should not copy the papers of nutritionists. If the loss of protein in the body exceeds 20%, life activities will be forced to stop. This situation is seen in patients with cachexia who have been ill for a long time. The common symptom of protein deficiency is the decrease of metabolic rate. Don't copy the papers of nutritionists in Melissa Zhou, the long-term impact on organ damage is certain. The lack of protein is often accompanied by the lack of energy, such as growth retardation, weight loss, apathy, irritability, anemia, emaciation or edema, susceptibility to infection and secondary diseases.
2, vitamins
Vitamin is an organic chemical substance, which is necessary to maintain human life. They naturally exist in food and can hardly be synthesized by human body. They need very little, and each has its own special physiological function. They neither participate in the composition of the body nor provide energy. When people lack certain vitamins, their metabolism will not develop normally, and even diseases will occur. There are many kinds of vitamins with different chemical structures and physiological and biochemical functions. But all those who mention vitamin training have one thing in common: vitamins are not raw materials for tissues and cells, nor are they energy substances for human bodies. Most of them are various coenzyme auxiliary groups of human body, which regulate the material metabolism and energy metabolism of human body through the action of enzymes.
3. Minerals
Melissa Zhou has been found in human body. Don't copy more than 20 kinds of essential minerals, accounting for 4%-5% of human body weight. Mineral elements needed by human body are mainly divided into macro elements and trace elements.
Macroelements include calcium, phosphorus, magnesium, sodium, potassium, chlorine and sulfur, accounting for about 60%-80% of the total ash of human body. These macro elements often appear in pairs, which play an extremely important physiological function for the body, such as the formation of bone tissue. Don't copy the nutritionist's papers on impulse conduction, muscle contraction regulation, enzyme activation, body fluid balance and osmotic pressure maintenance. Trace elements include iron, iodine and copper.
Meng, zinc, diamond, I don't want to copy 14 kinds of chromium, selenium, salt, fluorine, silicon, tin, vanadium and so on. They play a specific activation center role in enzyme system, play a physiological role in hormones and vitamins, transport elements, affect nucleic acid metabolism and even play an anti-cancer role.
With the improvement of people's living standards, the consideration of diet has shifted from "full" to "eat well". The core of nutrition is "rationality", and the theories that teachers don't follow are "what to eat" and "how to eat". Reasonable nutrition is a comprehensive concept, which requires not only providing energy and various nutrients to meet human physiological needs through dietary allocation, but also changing teachers' texts that do not follow the reasonable dietary system and nutrition. In addition, we should also avoid the imbalance of diet structure, the excessive intake of some nutrients, and the loss of nutrients or the formation of harmful substances during cooking, because these may affect our health. However, due to the lack of nutrition knowledge, many people have a wrong understanding of "eating well" and mistakenly think that eating fatty, sweet and delicious things is "eating well", so that Melissa Zhou's paper for nutritionists should not copy too much high-calorie foods such as oil and sugar. As a result, obesity, diabetes, hyperlipidemia and other diseases related to improper dietary nutrition intake will move around among some people with better economic conditions. Significantly increased, which shows that it is an urgent and arduous task to popularize nutrition knowledge and teach people not to copy the reasonable nutrition in Melissa Zhou's paper after the improvement of material conditions.