Dr. Russell Barkley just explained ADHD in a way that flips everything parents think they know: It's a delay in the brain's 5 core executive functions—all rooted in the frontal lobe: 1. Ability to stop (inhibit impulses) 2. Use visual imagery (mental rehearsal) 3. Use the mind's voice (internal self-talk) 4. Manage emotions & motivation (mind's heart) 5. Plan & problem-solve — the highest human executive function: generating multiple future options when faced with obstacles. This last one—the "mind's playground"—doesn't fully emerge until late childhood even in neurotypical kids. In ADHD, all five are significantly delayed. That's why: - They can hyperfocus on video games (instant external rewards) but can't start homework (no internal drive or planning). - They blurt, interrupt, or explode emotionally (can't stop or regulate). - They struggle to "think ahead" or see multiple solutions (planning feels impossible). Barkley: "These are not choices. This is neurogenetic executive delay." Understanding this stops blame and shame—and starts real support. If you're a parent, teacher, or have ADHD yourself: which of these 5 feels most delayed for you/your child? What finally helped bridge the gap?