Exercising the Brain Eat greens

Consume foods containing plant antioxidants, such as spinach and blueberries. An American study suggests this helps reverse mental decline as we age. Plants that are also rich in folate are even better: researchers found older men who ate folate-rich leafy greens and citrus fruit had significantly less age-related decline in memory and brain function over three years than those whose diets were low in folate.