You've probably heard the joke that goes, "what do you call a guy who hangs out with musicians? A drummer." But if you've played real drums, or even a little Rock Band, you're no doubt aware that drumming is hard work.
Now some scientists are studying just how hard. Apparently if you're really rocking out, it gets your heart going as much as a professional athlete's, and can burn as much as 600 calories in an hour.
So think twice before telling a drummer joke in front of drummer. Chances are the drummer can kick your ass.