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Because the human body is very complex, they are, of course, made up of a lot of cells, which is close to 30 trillion. These cells live in harmony with each other, caring for their own things that are necessary for the survival of the human body. But not everyone is aware that these cells are not just human, that is, there are not only human cells in our body, but scientist calculate that the number of bacterial cells exceeds the number of human cells in us. There are about two hundred different types of cells in the body, such as red blood cells, skin cells, nerve cells, or fat cells. So, because the human body is a multicellular, complex organism, every cell has a function. The cells in our body are special, all it does is that some types are unique and have a special function. Hence, all 200 types of cells have their own roles, different in structure, size, shape, and function.
It is difficult to decide how many cells a body produces in a day. The lifespan of each cell type is different, and it is from this fact that not all cell types are produced equally. A red blood cell can be a good example, it is known to have a lifespan of about 120 days, when macrophages, which are found in the liver and spleen, remove them from the bloodstream. However, special stem cells replace them at roughly the same rate. It may even be a question of how many cells die in the body in a day. The fact that cells die, but a healthy body can replace cells, is balanced by how much it produces and dies daily. That is, using an example, taking the red blood cells back, the body can produce between 173 and 259 billion a day, and that’s pretty much the number that dies. It’s hard to guess how many cells die in a day because they aren’t produced equally when it comes to their life cycle.
So, the answer to the question is not simple, according to research, this number is 30 trillion in an average human body, most of which are red blood cells, but there are almost the same number of bacteria in the body, or about 38 trillion, so the number of cells in the human body is 68 trillion. it can also be that of an average body or not just human. Today's science knows this, and there will certainly be more correct results later.
For more information, click here: https://www.nationalgeographic.com/science/article/how-many-cells-are-in-your-body
Information compiled by Dezső Sándor.