Illustration by Lauren Tamaki

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If you like to add fruit to your cereal or yogurt, go for blueberries and strawberries—they're clear winners. A study of roughly 16,000 women age 70 and older revealed that eating at least one serving of blueberries or two servings of strawberries a week delayed cognitive aging by up to two and a half years compared with those who ate less of either fruit. The antiaging effects may be attributed to anthocyanins, antioxidants that may help protect neurons in regions of the brain related to learning and memory.