Most people assume all unwanted thoughts belong to the same chaotic category ,the mental static that disrupts your focus, startles you in the middle of a quiet afternoon, or nudges you toward something you never intended to say or do. But the mind is far more precise than we give it credit for. Not all unwanted thoughts are created equal. Two types in particular often get confused: intrusive thoughts  and impulsive thoughts .The confusion makes sense ,both appear suddenly, bo