Skip to main content
highlighted ADHD dictionary entry

ADHD Basics

Attention Deficit Hyperactivity Disorder (ADHD) is a condition that becomes apparent in some children in the preschool and early school years. It is hard for these children to control their behavior and/or pay attention.

Go more in-depth with our ADHD Topic page.

It is estimated that between 3 and 5 percent of children have ADHD, or approximately 2 million children in the United States. This means that in a classroom of 25 to 30 children, it is likely that at least one will have ADHD.*

Click below to learn more about ADHD and what you can do to help children and adults with ADHD achieve their full potential.

What Is ADHD?

Attention Deficit Hyperactivity Disorder (ADHD) is a condition that becomes apparent in some children in the preschool and early school years. It is hard for these children to control their behavior and/or pay attention.

Symptoms of ADHD

The principal characteristics of ADHD are inattention, hyperactivity, and impulsivity.

Is It Really ADHD?

Not everyone who is overly hyperactive, inattentive, or impulsive has ADHD.

Diagnosis of ADHD

Some parents see signs of inattention, hyperactivity, and impulsivity in their toddler long before the child enters school. 

What Causes ADHD?

There are various theories about what causes ADHD, but what is most important is not the cause but for parents to focus on strategies that best help their child thrive academically, socially, and emotionally.

Treatment of ADHD

Every family wants to determine what treatment will be most effective for their child. This question needs to be answered by each family in consultation with their health care professional.

The Family and the ADHD Child

Medication can help the ADHD child in everyday life. He or she may be better able to control some of the behavior problems that have led to trouble with parents and siblings. But it takes time to undo the frustration, blame, and anger that may have gone on for so long. Both parents and children may need special help to develop techniques for managing the patterns of behavior.

Your ADHD Child and School

You are your child’s best advocate. To be a good advocate for your child, learn as much as you can about ADHD and how it affects your child at home, in school, and in social situations.

Teenagers with ADHD

Your child with ADHD has successfully navigated the early school years and is beginning his or her journey through middle school and high school. Although your child has been periodically evaluated through the years, this is a good time to have a complete re-evaluation of your child’s health.

Adults with ADHD

Sometimes people are not diagnosed with ADHD until they are adults and the root of their own life-long challenges becomes clearer. From there, the newly diagnosed can take action.

Back to Top