Your mom always told you to eat your spinach, and there's science to back up her advice. The green leafy vegetable is loaded with vitamins C and E, which, studies have shown, help to improve cognitive abilities.
A 2000 study in the Journals of Gerontology showed that rats whose diet was supplemented with vitamin E experienced a 500 to 900 percent increase in brain and nerve tissue over an eight-month period, as well as an increase in the release of dopamine in the brain, the "pleasure" chemical that controls flow of information to different parts of the brain.
And a 2000 study in the journal Brain Research found that aging rats had some of their age-related memory and motor deficits reversed after they were fed diets supplemented with spinach, strawberries or blueberries.