Summary:
- The human brain is born with most of its neurons, but it continues to generate new neurons throughout adulthood in a process called adult neurogenesis.
- Adult neurogenesis occurs primarily in two regions of the brain: the hippocampus, which is involved in memory and learning, and the olfactory bulb, which is responsible for the sense of smell.
- The function of these newly generated neurons is not fully understood, but they may play a role in memory, mood regulation, and the sense of smell, and their dysfunction has been linked to various neurological and psychiatric disorders.