ADHD or Depression: The Diagnostic Tangle

When ADHD and depression occur together—which they do in 30-40% of cases—clinicians face a diagnostic puzzle. Both conditions can cause impaired concentration, fatigue, and executive dysfunction, making it difficult to tell which is driving the bus. This episode explores the three key clinical distinctions: developmental history, the quality of attention complaints (hyperfocus vs. global fog), and the architecture of mood disturbance. We also discuss when treating ADHD alone resolves depression, and when both conditions need independent treatment.