What's the status of adult neurogenesis in humans? Wikipedia says that it's controversial whether or not it exists [1]. If we don't know that happens in humans,

What's the status of adult neurogenesis in humans? Wikipedia says that it's controversial whether or not it exists [1]. If we don't know that happens in humans, what can we make of an a study about exercise-mediated neurogenesis in rats? [1] https://en.wikipedia.org/wiki/Adult_neurogenesis https://en.wikipedia.org/wiki/Adult_neurogenesis