Do human brains keep generating new neurons in the hippocampus throughout life, or not?
Two studies, just published within a month of each other, come down on opposite sides of that question.
The first link below is a well-written media article discussing the two research papers and the possible grounds for the conflict:
Do Older Brains Make New Neurons or Not?
Next are a link to a media article on the “no-new-neurons” work, together with the research abstract:
Your brain stopped making new cells at age 13, study claims
Human hippocampal neurogenesis drops sharply in children to undetectable levels in adults
And here is a link to a media article on the “new-neurons-all-through-life” work, together with a link to the full research article:
Surprise! Scientists find signs of new brain cells in adults as old as 79
Human Hippocampal Neurogenesis Persists throughout Aging
Finally, to give rats their due, here are links to a media article and to the research article, on work showing that strong physical exercise causes rat brains to increase the rate at which new hippocampal neurons are created:
Physical exercise increases adult hippocampal neurogenesis in male rats provided it is aerobic and sustained.
Sustained aerobic exercise increases adult neurogenesis in brain
All the links have been added to Neuro-Psych.