In young children, ADHD often presents as visible "externalizing" behaviors:
: Symptoms from both of the above categories are present. Symptoms Across the Lifespan
Adult ADHD often looks different, as individuals develop "masking" strategies or internalize their restlessness: Attention-Deficit/Hyperactivity Disorder (ADHD)
Difficulty sitting still in the classroom (fidgeting or leaving their seat). Blurting out answers or interrupting others. Frequently losing school supplies or personal items. Appearing not to listen when spoken to directly. ADHD in Adults
Understanding ADHD: A Lifespan Perspective on Neurodiversity
: Excessive movement, restlessness, and acting without thinking.
: Difficulty staying on task, following instructions, and staying organized.
At its core, ADHD is a neurodevelopmental disorder—meaning it affects how the brain develops and functions. It is characterized by persistent patterns of , hyperactivity , and impulsivity that interfere with daily functioning or development.