“Nerve cells do not recover” is no longer an axiom or even a theory. It's more of a myth. Gerd Kempermann, one of the leading German neuroscientists, is successfully working to debunk this myth. In collaboration with other brain researchers, he was able to convincingly prove that the adult brain also has stem cells, so it is capable of forming new neurons, thereby slowing down its own aging. In his book, Professor Kempermann talks about the enormous significance of the discovery of adult neurogenesis for medical research , aimed at combating dementia, Alzheimer's disease, depression and other neurodegenerative diseases and what needs to be done to prolong the youth of the brain and improve memory. “The fact that the brain changes when it is used, and weakens if it is not occupied with anything, is itself known to myself for a long time. But the fact that new nerve cells play an important role in this phenomenon called “plasticity” has only in recent years led us to take a different look at the existing data and led to fresh ideas about how to keep the brain in good shape into old age.” . (Gerd Kempermann)