The brain reaches its peak at the age of 13.

The hippocampus, which is responsible for memory and learning, stops producing new nerve cells after the brain reaches its peak at 13.
a study published in the authoritative journal Nature on July 7 to draw the above-mentioned subversive conclusions.
previously, scientists generally believed that the hippocampus in adults would continue to produce new neurons.
scientists studied brain samples from 59 adults and children, but no new neurons were found in the brains of adults over the age of 18.
they found some newborn neurons in brain samples of infants, 7 and 13-year-olds.
studies suggest that human hippocampus develops during the fetal stage, unlike other animals that still produce new neurons in adulthood.
AFP quoted a neuroscientist as saying the results were "sobering" and "destined to be controversial" and needed to be confirmed by other studies.
past, scientists had hoped to find ways to promote the production of new neurons in the hippocampus, thereby slowing brain degradation due to age.
Source: People's Network.