Problem: Neurogenesis Discussion When I was younger (yes, it was a long time ago), we were taught that you were born with all the neurons you would ever have and if you killed them off because you drank alcohol or took drugs, you were doing serious, irreparable damage to your brain. From your text, you now know that certain areas of the brain (the hippocampus and the olfactory bulb) are able to generate new neurons through a process called neurogenesis. From TED: Can we, as adults, grow new neurons?