![]() Essentially, we think these stem cells swap in more RAM to keep the brain running in top shape. But a computer can be upgraded by adding additional programs, memory and storage to make it run faster. When a computer becomes outdated, it runs slower and has less memory. SONG: We think these stem cells update the brain, similar to how a computer gets updated. There is a reservoir of stem cells found in the hippocampus-a part of the brain involved in learning, memory, information processing and mood regulation. If they were, we would probably be able to naturally heal every assault against our brains. This source of these stem cells remains with people during most of their adult life. SONG: Many people believed that for a long time, but around 20 years ago, researchers discovered stem cells in the brain. Isn’t it true that brain cells don’t divide, that when they die, they can’t be replaced? ![]() He studies a reservoir of stem cells that keep the brain running in top shape. Hongjun Song is a professor of neurology and neuroscience and directs the Stem Cell Program in the Institute for Cell Engineering.
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