You may have heard that the neurons with which you are born are those with which they die. Well, less, because in the first years of our life we have about three times more neurons than when we reach maturity. As we learn, some connections between neurons are specifically reinforced by those that form the most used paths. The less used connections, on the other hand, end up losing, leave some neurons disconnected until they are more or less 86,000 million that fill our skull. What that phrase means is, in reality, that those 86,000 million were already present at your birth and that, since then, new neurons have not been born.
You may also have heard that this is a bully that, in reality, has been shown that the adult human brain continues to produce neurons even when neurodevelopment has stopped. However, neither of the two statements is exactly correct. The truth is that, until now, no study had found “new” neurons in adult human brains. He had found them in other animals, yes, and some study with carbon 14 had distinguished relatively young neurons in human brains, but, until today, there was no publication that would have found a direct test.
In any case, that the neurons do not multiply have a point of truth, because we cannot deny that they “replenish” less hard than other cells. A brain injury and an identical injury in the liver will not have the same prognosis. The key is that this does not mean that there is not a single new neuron during life. He…
