“Why can’t you just clean your room, start your homework, study for your test, and put your bike away?” I cannot count the number of times I have said the words “Why can’t you just” to my ADHD son.

Children with ADHD are often bright, spontaneous, and caring. But parenting them is not without its challenges. Behavioral problems—from forgetting to do chores to outright defiance—can be frustrating ...