Tweet A study by the University of Melbourne in April 2009 showed that workers who used the Internet for fun actually were more productive (about 9% more) than those who didn’t. Surprised? I wasn’t. Here’s why: I recently did an experiment for The Joy Diet (week 6 treat week) where I had to indulge in two treats a day. While I admit that a few times during the week “treats” meant something sweet, a sugar coma eventually forced me to find alternative ways to fulfill the condition. Eventually I realized that all work and no play wasn’t a good thing.…