First lady Michelle Obama is constantly promoting her "let's move" message to Americans, and she may be onto something. Physical activity does the body good, and there's growing evidence that it helps the brain too.
Researchers in the Netherlands report that children who get more exercise, whether at school or on their own, tend to have higher GPAs and better scores on standardized tests. In a review of 14 studies that looked at physical activity and academic performance, investigators found that the more children moved, the better their grades were in school, particularly in the basic subjects of math, English and...