Turns out Mom and Dad were right. Those piano lessons you despised and those endless hours in school band practice truly were good for you. From making you smarter, to diminishing the effects of brain aging, to improving emotional stability, it seems that playing an instrument has a hand in reconfiguring your brain and enhancing it. Permanently. And let's be clear: just listening to music doesn't cut it. It's the active work of bringing sounds to life that delivers the biggest benefit.