"Are you left-brained or right-brained? Are you more creative or rational? You can find out easily enough – there are myriad online tests that will help you find your dominant hemisphere.Or so they claim. In fact, a study in PLOS One last year showed fairly conclusively that the idea one side of our brain is more dominant than the other – and by extension, that this dictates what kind of person you are – is little more than a myth."