Psychology Today | 04.05.2026 03:26
Why does depression so often arrive with anxiety? Why do trauma symptoms, substance use, and mood problems so frequently become tangled together? For many patients, receiving more than one psychiatric diagnosis can feel confusing and discouraging, leaving them to question if the first diagnosis was wrong or if they're getting worse. But a large new study suggests another possibility: many psychiatric disorders overlap because some of their biological roots overlap, too.
