What are the laws of human cell metabolism?

Many people always find that they have a layer of white skin. This is actually the metabolism of the human body. All human bodies are made up of cells, whether it is skin cells, liver cells, brain cells, eye cells, etc., all will have metabolism, but with age, some metabolism is slower. Let me introduce to you some knowledge about human cell metabolism!

The metabolic cycles of cells in the human body are different. At the same time, due to differences in age and gender, the metabolic cycles of cells are also different. For example, the life span of an adult's endothelial cells normally lasts about 120 days, while that of a newborn baby's is only 30 days.

The average life span of red blood cells is 120 days, neutrophils live in connective tissue for 2-3 days, alkaline granulocytes live in tissues for 10-15 days, eosinophils live for 8-12 days, and platelets live for 7-14 days. (The growth cycle of hair is 3-5 years. I just mentioned this by the way. Hair is not a cell). It takes about 85 days for an egg cell to develop and mature. After ovulation, if there is no sperm, the egg cell will degenerate and disappear within 24 hours. If fertilized, the egg cell will grow into an adult, and this cell may live for 100 years. Sperm lives in the vagina for about 3-5 days, and the skin is renewed about every 3 days. So the conclusion is that the longest cell is the red blood cell, and the shortest is the neutrophil.

Myocardial cells and nerve cells are non-regenerative cells and basically accompany people throughout their lives. Brain cells are divided into many types. 1: Nerve cells, which are theoretically immortal because they are non-reproductive cells. 2: Neuroblastoma, which are equivalent to immune cells in other parts of the human body. They will proliferate quickly if there is an infection, and they will also proliferate quickly in order to repair damaged nerve fibers. Generally speaking, brain damage is irreversible, so in any dangerous situation, protecting the brain is the first priority.

The outside of the skin is a gelatinous layer, which is full of dead cells.

There are many cells in the human body, and each has a different life cycle. Some are relatively short. For example, the renewal cycle of epithelial cells in the small intestine is about 3-6 days; the lifespan of the neck mucous cells of the fundic glands in the stomach is about 1 week, but the lifespan of chief cells and parietal cells is as long as 200 days. Among blood cells, red blood cells have a lifespan of 120 days, but white blood cells only have a lifespan of a few days. The average renewal time of normal epidermal cells is 28 days.

The lifespan of liver cells is only 5 months, the lifespan of intestinal villi is 2 to 3 days, the lifespan of taste buds is only 10 days, the lifespan of the brain is the same as your own lifespan, the lifespan of the eyes is the same as your lifespan, the bones are renewed once every 10 years, the lifespan of heart stem cells is 20 years, the lifespan of lung surface cells is about 2 to 3 weeks, the surface of the skin renews itself every 2 to 4 weeks, the complete growth of nails is 6 to 10 months, the renewal frequency of red blood cells is 4 months, and the growth of hair is 3 to 6 years.

The above is some knowledge about human metabolism. I believe that after reading the editor’s introduction above, you will have a deeper understanding of human metabolism. Normal people must carry out some metabolism every day. If the metabolism is too fast or too slow, it will have a certain impact on the human body. It is very necessary to follow the laws of metabolism.