Exercising the body also exercises the brain - Treadmills in Classrooms?

Just kidding! My friend and colleague Rachel kicked up her blogging again...nice job, Rachel. I love this article she posted thanks to her friend.
So, the collective genius of the educational powers cancelling sports and extracurricular activities in favor of the 3Rs might have done more harm then good?
Gee, I'm shocked!
I encourage the 3As: Athletics, Arts, and Academics. I don't care what my kids choose to do, but they will choose at least 1 activity from each category. So far, so good...