And the nice thing is that we're talking about modest exercise, not two hours in the gym every day.

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Physical activity has been shown to be beneficial for health and aging in a number of areas. This emerging association between exercise and cognitive health is increasingly important to understand.

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That is remarkable. While it is intriguing, it is preliminary and we'll look for other studies to confirm the finding. Then, we need basic science to figure out how it is helping.

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