The obvious

Here's a recent study that documents the obvious:

http://www.sciencedaily.com/releases/2009/03/090331183800.htm

The gist is that kids who are physically active can pay better attention in class - well, duh. Note that the sample size of the study is very small (only 20 kids), so it's weak statistically, but it sure fits common sense! I've long believed that much of the current plague of ADD type disorders relates to kids - and especially boys - not having major physical work to do on a regular basis.

It's always nice to fine a study that reinforces your prejudices!