New research suggests ADHD may consist of three distinct brain-based subtypes, including a severe combined presentation associated with emotional dysregulation. For this episode of TechMobility Topics, I examine what these findings could mean for parents, educators, clinicians, and future approaches to diagnosis and treatment. I also explain why researchers caution that brain imaging is not yet ready to diagnose ADHD in individual patients, despite the promise these discoveries hold for more personalized care.