
ADDitude - ADD & ADHD Symptom Tests, Signs, Treatment, …
Since 1998, millions of parents and adults have trusted ADDitude's expert guidance and support for living better with ADHD and its related mental health conditions.
ADD vs. ADHD: How Are They Different? - Verywell Mind
Oct 6, 2025 · ADD is an outdated term for the inattentive type of attention deficit hyperactivity disorder (ADHD). Learn more about the characteristics of this type of ADHD.
ADD vs. ADHD: What’s the Difference?
Nov 24, 2025 · ADD is an outdated name for ADHD. It was changed in 1987. People with ADHD may present as primarily inattentive, primarily hyperactive-impulsive or both.
Home - ADDA - Attention Deficit Disorder Association
Whether you’re newly diagnosed, wondering if you have ADHD, or simply ready to take charge of your life – we’re here to help. Have ADHD? Start Here. ADDA is the world’s largest …
About ADHD | Attention-Deficit / Hyperactivity Disorder (ADHD)
Nov 25, 2025 · Attention-deficit/hyperactivity disorder (ADHD) is one of the most common neurodevelopmental disorders of childhood. Symptoms start in childhood and often last into …
ADD vs. ADHD: What's the Difference Between ADD & ADHD? - WebMD
Dec 9, 2024 · ADD vs ADHD: What sets them apart? Learn the difference between ADHD inattentive, hyperactive/impulsive, and combined type to better understand these conditions.
CHADD - Improving the lives of people affected by ADHD
Children and Adults with Attention-Deficit/Hyperactivity Disorder (CHADD) is the nation's leading nonprofit organization serving people affected by ADHD.
Attention-Deficit/Hyperactivity Disorder (ADHD) - NIMH
NIMH researches attention-deficit/hyperactivity disorder (ADHD). Find resources on the signs and symptoms of ADHD and potential treatments and therapies.
Attention Deficit Hyperactivity Disorder (ADHD) Resources
Aug 28, 2025 · On this page you will find Attention Deficit Hyperactivity Disorder (ADHD) resources.
Are ADHD and ADD Different? - Healthline
Feb 24, 2025 · Experts have identified three types of ADHD based on the main symptoms involved: Originally, ADD described what’s now inattentive ADHD. A mental health …