ADHD Overview
Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by persistent patterns of inattention, hyperactivity, and/or impulsivity that interfere with functioning or development. While symptoms often emerge during childhood, ADHD frequently persists into adolescence and adulthood. Research suggests that approximately 43% of individuals diagnosed in childhood continue to meet criteria or experience clinically significant symptoms as adults.
ADHD symptoms generally fall within three core domains:
- Inattention: Difficulty sustaining attention, organizing tasks, following through on instructions, frequent distractibility, forgetfulness, and losing necessary items.
- Hyperactivity: Excessive movement, fidgeting, restlessness, difficulty remaining seated, excessive talking, or feeling constantly “on the go.”
- Impulsivity: Interrupting others, blurting out answers, acting without considering consequences, and difficulty waiting one’s turn.
Although occasional inattention or impulsive behavior is common, ADHD is distinguished by symptoms that are persistent, developmentally inappropriate, present across multiple settings (for example home, school, or work), and associated with clinically significant impairment in social, academic, or occupational functioning.
Next: DSM Criteria