Key Takeaways Worry Is Not the Same as Problem-Solving: Effective problem-solving moves toward a decision or action. Chronic worry can keep generating possibilities without producing a clear next step. Process vs. Content: Repetitive Negative Thinking (RNT) describes the process of getting stuck in repetitive negative thoughts, while catastrophizing describes the content—magnifying a situation or anticipating an excessively negative outcome. The Certainty Trap: Anxiety doesn'