"There are other brain regions that also produce new brain cells, but the hippocampus appears to be where much of the activity takes place," says Dr. They are responsible for learning and storing memories. One lies within the left hemisphere and the other in the right. There are two of these small, seahorse-shaped regions in the brain. That’s especially true in the hippocampus. Over the years, neurogenesis gradually declines, but the process doesn’t stop even into older age. In the earliest stages of childhood, new brain cells continue to be made at a brisk pace. The average brain contains about 100 billion brain cells, most of which were formed before birth. Rudolph Tanzi, a neuroscientist and co-director of the McCance Center for Brain Health at Harvard-affiliated Massachusetts General Hospital. "While most brains can develop new cells, the goal for science now is to find the best ways to do that," says Dr. How well the brain does this - and how we can enhance it - may solve the puzzle for improving age-related memory loss and perhaps prevent dementia, including Alzheimer’s disease. Scientific studies now show that the brain can continue to produce new cells, called neurons, as we age, even late into life, through a process called neurogenesis. You simply used what you were born with, and if they died through age or injury, that was that. It was once thought the brain could not create new cells. Science suggests it’s possible to make new brain cells and improve your memory.
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