You wake up at 3 a.m. replaying an awkward comment you made at dinner. By morning, that single moment has snowballed into a full conviction that people think you're incompetent, your career is stalling, and your relationships are crumbling. Sound familiar? You're not alone — and more importantly, you're not broken. Negative thinking is one of the most common human experiences, but when it gets stuck in a loop, it can quietly sabotage your mood, health, and decision-making. The good news? Science now understands exactly why these loops form — and there are practical, proven ways to interrupt them. Let's break it all down. What Is a Negative Thinking Loop? A negative thinking loop — also called rumination — is when your mind keeps cycling back to distressing thoughts without reaching any resolution. Unlike useful problem-solving, rumination doesn't move you forward. It just keeps you spinning. Psychologists distinguish between two main types: • ...