So many parents are trying to keep kids away from TV, computers and video games and out of the house for some good old fashion exercise.
Of course we all no the more exercise the more fit out kids will be. But now new research show exercise does more for kids than keep them fit, it actually makes them smarter.
Researchers at the university of Illinois scanned the brains of about 50 kids ages 9 and 10.
They found that in more active kids the part of the brain that controls memory and intelligence was larger.
Scientists believe encouraging kids to exercise at a very young age could help them do better in school.