Nerve cells do not recover: true or myth?

 Some of the old ones are dying, and new ones are being built into established networks. What benefits can be drawn from these processes?

“First of all, biologists are exploring the possibility of transplanting new neurons into the damaged areas of the brain, which may be relevant for the treatment of Alzheimer's disease and some other diseases associated with degeneration and brain injuries. The fact that the nerve tissue survives after transplantation and stimulates the regeneration of the brain, for example, you can take the option, after strokes, where it has already been proven in animals. In addition, the effect of neurogenesis on memory and cognitive processes, on pattern recognition, on the ability to navigate in space and act in a context-sensitive manner is now being actively studied.

Studies show that moderate physical activity enhances neurogenesis and improves cognitive function. The same effect has an increase in intervals between meals. But depression, alcoholism and severe stress slow down the formation of new neural networks.

So the meaning that we put in the call to maintain composure "Calm down, the nerve cells are not restored," remains the same. But, based on modern scientific data, it would correctly be expressed differently: "Calm down, you slow down neurogenesis."