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Older Adult Brains Can Grow Thousands of New Cells

Article by Patrick Kiger, AARP 

“The brains of healthy older people — including those well into their 70s — can generate as many neurons, or nerve cells, as younger people do, according to new research published in the journal Cell Stem Cell.

Researchers from Columbia University and the New York State Psychiatric Institute autopsied a section of the brain called the hippocampus, which processes learning and memory, in 28 individuals ranging from ages 14 to 79. All the subjects had died suddenly, after previously being in good health, and none had cognitive impairment. It was the first attempt to look at newly formed neurons and blood vessels in the hippocampus soon after death, according to a Cell Press news release describing the work.

“We found that older people have the similar ability to make thousands of hippocampal new neurons from progenitor cells as younger people do,” lead author Maura Boldrini, M.D., an associate professor of neurobiology at Columbia University, said in the release. “We also found equivalent volumes of the hippocampus across ages.”

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