Neurogenesis is the process by which new neurons are generated in the brain throughout an individual's life. This occurs mainly in two regions of the brain, the hippocampus and the olfactory bulb. Neurogenesis plays a crucial role in cognitive functions such as learning, memory, and mood regulation. It has also been implicated in various neurological disorders such as Alzheimer's disease, depression, and epilepsy. Researchers are actively studying ways to harness neurogenesis for therapeutic purposes, such as developing treatments for neurodegenerative diseases or enhancing cognitive function.