Your brain stopped making new cells at age 13, study claims

Your brain has peaked by age 13. The creation of new brain cells in the hippocampus ends before we even reach adulthood, according to a study published Wednesday in the journal Nature. Previously, scientists generally believed that the human hippocampus generates new brain cells or neurons throughout adulthood. There’s no consensus about the number of neurons made in adulthood; some researchers believe that hundreds of neurons are added each day, while others contend that very few are created after childhood.
This birth of new brain cells — or neurogenesis — is “a fascinating process,” said Arturo Alvarez-Buylla, senior author of the new study and a professor of neurological surgery at the University of California.

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