Find out what causes attention deficit/hyperactivity disorder (ADHD), what the symptoms are, and how it’s treated.

Some older adults -- those who are already retired or close to it -- are likely deal with ADHD as well.

It was once believed that about 50% of people with childhood ADHD go into remission as adults.

Little research explores ADHD in adult women. Most women get an accurate diagnosis in their late 30s or early 40s.

Has anyone ever asked you if you have ADHD? Maybe you've even wondered yourself.

Lots of things, like everyday habits, can affect your ability to concentrate. In some cases, a health issue may be the cause.

Putting off something that needs to be done is called procrastination. We all do it sometimes.

Doctors often see hyperfocus in people who have attention deficit hyperactivity disorder, but it’s not an official symptom.

No one knows exactly what causes ADHD, but certain things are known to play a role.

It’s estimated that adult ADHD affects more than 8 million adults (or up to 5% of Americans).

There’s an association between having childhood trauma and developing ADHD in adulthood. Here’s a look at that connection.

Some studies found that when you have ADHD, you’re four times more likely to also have PTSD.

There isn't one specific thing that can tell you that you have ADHD.

Because executive functions are a wide set of skills, there’s more than one tool to test how well yours work.

The FDA approved the use of electroencephalogram (EEG) to diagnose ADHD in 2013.

If you’re an adult who’s been recently diagnosed with ADHD, you may feel surprise or disbelief. You might be in denial.

Symptoms of adult ADHD are generally treated with medicine. But there's more to effective treatment than just taking a pill. 

If you are one of the estimated 8.7 million American adults with ADHD, you know that it can be expensive to treat.

Attention deficit hyperactivity disorder (ADHD) was first described in 1902, and research on it continues to this day.

The most common treatment for ADHD is stimulant drugs. They can improve your focus, attention span, and impulsive behavior.