We all know that each and every inch of our body is formed by a number of cells. They form the base of our organs, our skin, our blood and everything else. However, they don’t last forever.
These cells wear out, die or self-destruct for a number of reasons, which may vary from human diseases to natural causes. Nevertheless, our bodies are still functioning, because new cells take the place of the old ones. The process of cell renewal is so rapid that millions and millions of tiny particles are being replaced over the course of one second. In other words, before you can even finish reading this particular sentence, around 50 million new cells would have already replaced some of your old ones.
Our bodies carefully control the loss and the renewal of cells so that our organisms can continue functioning without suffering from cell loss. In other words, the average lifespan of your cells can not be exactly measured.