Thank you SO much for posting this article, Sarahsweets. I'm certainly ruminator. The trouble is that 95% of the time I don't do it on purpose. My mind spirals this way on its own and it's so hard to make it stop. I try visualization techniques like holding up a mental stop sign and redirecting the traffic. I also get physical or try distraction techniques. When I'm calmer I can challenge those thoughts with logic and that almost always works, at least when the thoughts are in the catastrophizing category. But when those thoughts are in the form of self-attack, I find it almost impossible to challenge because I can't help but believe the things my mind is saying about me.