From my experience, Brain Age doesn't make you smarter... but it does seem to make you a little more alert (something I wasn't expecting). A while ago, I was getting consumed with my responsibilities. From 6:30am to 9:00pm, it was all about my son, work, my wife, and the house. I ended up selling my Xbox and GameCube, as I had no energy to do anything... not even play games. This went on for several months. My work was being affected by my unhealthy routine. Then I bought a DS Lite (as soon as the Onyx became available) and Brain Age. Each night I'd play it for about 20 minutes (man, that word memorization sure hurt my noggin'). What I noticed is that (after a month or so) I became more focused at work and then as I became more satisfied with my efforts at work... I had more mental energy for my responsibilities at home. Now I "train my brain" with Clubhouse Games.The concept of transference is a major concern in cognitive training: There is no doubt that Brain Age's exercises can make your basic math skills improve, but do they really make you smarter?