This is your brain on exercise

(Photo: Raji Cyrus/UCLA)

Seniors who fit in the most daily physical activity – from raking leaves to dancing – can have more gray matter in important brain regions, researchers reported on Monday.

The scientists have images that show people who were the most active had 5 percent more gray matter than people who were the least active. Having more little gray brain cells translates into a lower risk of Alzheimer’s disease, other studies have shown.

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