Scientist have determined that exercise makes you smarter. In tests done on twins, with all other factors being equal, the twin that exercised was smarter than the twin that did not. This was  because of hormones released in the body when exercising and also due to increased blood flow to the brain………. Simply put, Hulk smash was smarter than twin brother Hulk can’t smash. Of course, you have to have the education in the first place because just going to the gym isn’t going to help nor does smashing things.