If you’re thinking positive thoughts explicitly to avoid or contradict negative thoughts . . . well, that’s another form of psychological rigidity and now the positive thoughts will remind you of the very thoughts you hoped to avoid. A recent study showed that positive affirmations like “I’m a good person!” work great as long as we don’t really need them. When we do need them, like when we start feeling bad about ourselves, such affirmations make us both feel and do worse!

