Foods That Make You Smarter

Fire up your focus and sharpen your smarts with these healthy brain-boosting foods.

Dark Chocolate

Flavonol compounds in dark chocolate help boost your circulatory system, promoting better blood flow to the brain. In fact, they could even improve your math skills. A 2009 study asking study participants to count backwards in groups of three discovered that those who drank flavonol-fueled hot cocoa calculated more quickly and were less likely to feel tired or mentally drained.