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Previous theories suggest that neurons in the brain stop developing after puberty.
But US researchers have found that older people can still grow new brain cells at the same rate as younger people, The Independent reported.
new research or help scientists develop new treatments for neurological disorders. An in-depth analysis of the brains of 28 people aged 14-79 in
University of Columbia concluded that healthy men and women continue to produce new neurons throughout their lives, and that the hippocampus of the elderly, which is a part of the brain that is vital to memory, mood and cognition, continues to produce neurons at the same rate as adolescents. "We found that older people, like young people, can grow a large number of new neurons in the hippocampus through progenitor cells, and that the hippocampus has the same capacity at all ages," said Maura Bordrini, lead author of the
study and an associate professor of neurobiology at Columbia University.
this suggests that many older people may have retained cognitive and emotional abilities longer than we thought.
" in addition, the researchers found fewer associations between blood vessels and cells in the brains of older people, Bordrini explained: "This may be related to impaired cognitive and emotional recovery."
" new study, published in the journal Cell-Stem Cells, contradicts a paper published last month by scientists at the University of California in the British journal Nature.
the latter, there is no evidence that new neurons will grow in the brain after the age of 13.
, the University of California researchers said: "The new study does not challenge the observations we published last month -- this could be a very rare phenomenon if neurons continue to form in adult hippocampuses."
" Bordrini said his team used rapidly frozen brain samples, while ucuniversity researchers used samples that were chemically preserved that could be detrimental to the discovery of new neurons.
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