Attention-Deficit Hyperactivity Disorder: What You Need to Know - NIMH Based on their specific symptoms, a person can be diagnosed with one of three types of ADHD: ADHD symptoms must begin in childhood (before age 12) Symptoms often continue into the teen years and adulthood The criterion for a diagnosis differs slightly based on age
Attention-Deficit Hyperactivity Disorder (ADHD) - NIMH Attention-deficit hyperactivity disorder (ADHD) is one of the most common childhood disorders and can continue through adolescence and into adulthood Symptoms include difficulty staying focused and paying attention, difficulty controlling behavior, and hyperactivity (over-activity)
Attention-Deficit Hyperactivity Disorder - NIMH ADHD symptoms must begin in childhood (before age 12) Symptoms often continue into the teen years and adulthood The criterion for a diagnosis differs slightly based on age Children up to 16 years must show at least six symptoms of inattention, hyperactivity and impulsivity, or both
NIH Researchers Identify Brain Connections Associated With ADHD in Youth Researchers at the National Institutes of Health (NIH) have discovered that symptoms of attention-deficit hyperactivity disorder (ADHD) are tied to atypical interactions between the brain’s frontal cortex and information processing centers deep in the brain