ADHD is a neurodevelopmental disorder affecting how the brain develops. According to the CDC (Centers for Disease Control and Prevention), there are three different types of ADHD. An ADHD diagnosis depends on which types of symptoms are strongest in the individual.

Predominantly Inattentive Presentation includes these types of challenges:

• It is hard for the individual to organize or finish a task
• Difficulty with paying attention to details, following instructions, or conversations
• The person is easily distracted or forgets details of daily routines

Predominantly Hyperactive-Impulsive Presentation includes these types of challenges:

• The person fidgets and talks a lot
• It is hard to sit still for long (e.g., for a meal or while doing homework)
• Younger children may run, jump or climb constantly
• The individual feels restless and has trouble with impulsivity
• Someone who is impulsive may interrupt others a lot, grab things from people, or speak at inappropriate times
• It is hard for the person to wait their turn or listen to directions
• A person with impulsiveness may have more accidents and injuries than others

Combined Presentation:

• Symptoms of the above two types are equally present in the person
• The person may experience many or all of the same challenges outlined above

Because symptoms can change over time, the presentation may change over time as well. Oftentimes, ADHD is understood only as having negative outcomes. But the more you learn about neurodiversity, the better you’ll be able to see how ADHD also has positive outcomes.