How do neurons divide and regenerate in the human brain?

Neurons in the human brain do not typically divide or regenerate like other cells in the body. Once neurons are damaged or lost, they are not easily replaced. However, there is ongoing research on ways to stimulate neurogenesis, the process of generating new neurons, in certain regions of the brain. Additionally, some studies suggest that under certain conditions, existing neural stem cells in the brain may be able to produce new neurons.