Only a few decades ago, it was believed that ADHD was something one outgrew during adolescence. However, about half of those diagnosed at a young age carry it into adulthood. "For many, the cognitive and behavioral difficulties persist, although they come in a slightly different form," says Anne-Kristin Solbakk, professor of neuropsychology at RITMO—Center for Interdisciplinary Studies in Rhythm, Time, and Motion.