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By Gretchen Reynolds

August 30, 2017

Being active in youth may change the inner workings of brain cells much

later in life and sharpen some types of thinking, according to a remarkable

new neurological study involving rats.


The study suggests that the effects of youthful exercise on the brain could

linger deep into adulthood, potentially providing a buffer against the

declines in brain health and memory that otherwise occur with age.