Playing is not only for kids and the young at heart. Grown-upsplay too, although we mainly unleash our imagination with closefriends and family. But playfulness is nothing to be ashamed of,according to play researcher Marc Malmdorf Andersen fromAarhus University. In fact, play is much like a scientific process,where we test one hare-brained idea after another. And besidesmaking us better, more creative adults, play can also make lovegrow – and perhaps even save the world. That sounds quitesensible, doesn’t it? And it’s guaranteed to be a barrel of fun.