ADHD has long been viewed as solely a childhood disorder. But millions of adults — an estimated 2 to 4 percent — have ADHD.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Professionals will base their diagnosis of ADHD on the following ...

Girls with ADHD are more likely than their male counterparts to demonstrate inattentive symptoms. These inattentive girls are the ones staring out the window or picking their split ends or doodling ...

Children who display more symptoms of attention-deficit/hyperactivity disorder (ADHD) tend to earn lower grades in school, ...