Intense mental exercise may be able to offset the effects of aging, research finds

October 17, 2025

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1 min read

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NPR

A new study shows that cognitive training can increase the levels of a key chemical messenger in the brain responsible for decision-making.

MARY LOUISE KELLY, HOST: Scientists have produced the first compelling evidence that mental exercise can cause biological changes in a human brain. NPR's Jon Hamilton reports on a new study showing that intensive cognitive training reversed a process... [4092 chars]

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