Question

How often do brain cells replace themselves?

Answer 1

Brain cell regeneration:

1. Recent studies have shown that the brain produces new cells (as many as 1500 new neurons every day in the dentate gyrus of the hippocampus).
2. In a healthy brain, neurogenesis occurs frequently, especially in the hippocampus.
3. This fact is now widely acknowledged.
4. Additionally, as we age, brain cells do not regenerate.
5. Despite the fact that research suggests the hippocampus's memory-related cells can renew.
6. 1500 neurons a day may seem insignificant compared to the billions of neurons in the brain, yet over the course of a lifetime, this represents a renewal of about 80% of the dentate gyrus' neuronal population.