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Summer Brain Boosters

Don't let summer sap your smarts. These sneaky little games and snacks will keep you sharp. Your brain will thank you.

By Susan Hall

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Whip Up Some Guac

The perfect summer dip is more than just a yummy accompaniment for your favorite chips. Guacamole is a great source of vitamin E, which research by Martha Clare Morris, Sc.D., director of the section on nutrition and nutritional epidemiology in the department of internal medicine at Rush University in Chicago, says may ward off Alzheimer's disease.

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