Intestine is the largest digestive organ of human body and the largest detoxification organ of human body. Therefore, the state of the intestine determines the appearance and beauty of people.
Intestine can also be called the "most tired organ" of the body-it continuously digests and absorbs food every day to provide enough nutrition, and it is the "nutrition production center" of the human body. In fact, its role goes far beyond this. It is also the largest microecosystem in the human body. The micro-ecosystem of human body includes four micro-ecosystems: oral cavity, skin, urinary tract and gastrointestinal tract. The microbial biomass of intestinal tract accounts for 78% of the total microbial biomass of human body, and it gathers about 60% ~ 70% of immune cells of human body, becoming the natural barrier to maintain human health and the "largest" immune organ of human body. Therefore, intestinal health is of great significance!
? ? "Nutrition Production Center"
Please think about it: what kind of digestion process does the food we eat go through in human organs? How are the nutrients in food absorbed by the human body?
Most people may think that the stomach is the main organ for digesting food, but physiology proves that 80% of the digestion and absorption process is completed in the intestine, and 100% of nutrients and 90% of toxins in the human body are absorbed and excreted by it.
After food enters the stomach, it is mixed, ground and decomposed into chyme, which enters the intestine and moves slowly under the action of intestinal peristalsis and villi. Generally, it takes about 7 ~ 9 meters to pass through the intestine a day. During this period, the intestine will secrete something called "enzyme" to break down these chymes. The intestinal wall will choose substances that are useful to the human body to absorb, and useless and harmful residues will be excreted through the excretory system. The nutrients needed by the human body are absorbed by the intestine, and then handed over to the blood through the capillaries on the intestinal wall, which are carried to the whole body. This shows the importance of the intestine to the human body: the nutrition of the whole human body is produced here.
Therefore, it is very appropriate to call the intestine the "nutrition production center" of the human body.
The "largest" immune organ
The human intestine is about 7 ~ 9 meters long. The following picture shows the cross section of jejunum, and the intestinal mucosa and submucosa protrude into the intestinal cavity to form annular folds. There are many tiny protrusions on the mucosal surface, which are called intestinal villi. When all the annular folds and intestinal villi are unfolded, the surface area of small intestine will be expanded by 600 times, and the area of intestinal mucosa will be about 200 ~ 250 square meters. Intestine here refers to small intestine (duodenum, jejunum and ileum)+large intestine (colon, cecum and rectum).
? The expanded intestinal mucosa area is much larger than the skin area on the human body surface. As long as there is mucosa, there will be lymphoid tissue.
Intestinal mucosa has the largest surface area and the most contact with foreign bacteria, so lymphoid tissue is the most developed, which gathers about 60% ~ 70% immune cells in human body to fight against the invading bacteria and viruses.
? The human microecosystem includes four microecosystems: oral cavity, skin, urinary tract and gastrointestinal tract. Among them, intestinal microbial biomass accounts for 78% of the total microbial biomass of human body, which can be called the largest microecosystem of human body.
As the saying goes, "the disease enters from the mouth", most germs stutter, and the main way for bacteria to enter the human body is the intestine. It is not difficult to imagine that the health of the intestine depends on the activity of the intestine. These bacteria will be resisted by the beneficial bacteria in the intestine, and can't invade other circulation of the human body in a short time, and will soon be excreted with defecation, which naturally won't make people sick.
In terms of self-healing ability, the intestine plays a greater role. In fact, the self-healing ability of the human body is very strong. The German National Research Institute said in a research report of 200 1: "If all substances that can treat diseases are called drugs, the human body itself can produce more than 10,000 kinds of drugs! More than 70% of these 10,000 kinds of drugs are in the intestine. General diseases can be completely cured with these drugs. "
What's more, other immune and detoxification systems, such as liver, serum and lymphatic system. Everyone needs the nutrition provided by the intestine to survive. In this sense, the intestine is the largest immune organ of the human body, and it is no exaggeration that intestinal movement supports the whole life activity.
Intestine is so important, but it is "fragile and sensitive", which may cause various problems, so we must pay special attention to intestinal health!
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