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Can adults grow new brain cells?
Scientists are still debating whether the human brain is capable of growing new cells past childhood.
In adult mice, they found new neurons growing in parts of the brain collectively called the subventricular zone, an area closely linked with sense of smell, as well as in the hippocampus, a structure that’s central to memory. "Most of our knowledge about adult neurogenesis came from studies in animal models," Hongjun Song, a professor of neuroscience at the University of Pennsylvania Perelman School of Medicine, told Live Science in an email. Alvarez-Buylla said that even if he doesn't believe neurogenesis happens frequently in adults, it may nonetheless be possible to harness the mechanisms used by animals to grow new neurons for human therapies.
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