Exercise builds small blood vessels in brain, study says

Exercise is known to help prevent cognitive decline and maintain the brain as people age, and now researchers think they know one reason why.

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<p><a href="http://www.physorg.com/news147424171.html">Exercise builds small blood vessels in brain, study says</a></p> <p>Exercise is known to help prevent cognitive decline and maintain the brain as people age, and now researchers think they know one reason why.</p>