It's true. You can train your brain to be more positive. I know because I've done it. Our thoughts are extremely powerful and, good or bad, they create our perspective of ourselves and the world around us.
Katie Holmes on kindness. Ani on mean girls. I don't remember anything else about the mean girls in school other than that they were mean. Now is that really something we want to be known for as adults? Grow up girls, before you stick that way.