We are entrepreneurs ourselves, and the great majority of the adult patients we see for ADHD are or aspire to be entrepreneurs too. The owner and operator of an entrepreneurial support company called Strategic Coach, a man named Dan Sullivan (who also has ADHD!), estimates that at least 50 percent of his clients have ADHD as well.

Unexplained underachievement.

The connectome that lights up when you’re engaged in a task is called the task-positive network, or TPN. Aptly named, the TPN gets you down to work.

Predominantly Inattentive Presentation: if enough symptoms of inattention, but not hyperactivity-impulsivity, were present for the past six months

Indeed, our minds are here and there and everywhere—all at once—which sometimes manifests as appearing to be somewhere else, in some dreamy state.

Trouble with time management, and a tendency to procrastinate.

If you have at least six out of nine symptoms on the axis of inattention, but not on the axis of hyperactivity and impulsivity, then you have ADHD, predominantly inattentive. This is what used to be called ADD. If you have six out of nine symptoms on both axes, then you have ADHD, combined type. And if you are one of the extremely rare people who

“Creativity,” as we use the term in connection with ADHD, designates an innate ability, desire, and irrepressible urge to plunge one’s imagination regularly and deeply into life—into a project, an idea, a piece of music, a sandcastle.

Even awake we’re dreaming, always creating, always searching for some mud pie to turn into pumpkin apple chiffon.