Have We Been Thinking About A.D.H.D. All Wrong? : ‘The alternative model, by contrast, tells a child a very different story: that his A.D.H.D. symptoms exist on a continuum, one on which we all find ourselves; that he may be experiencing those symptoms as much because of where he is as because of who he is; and that next year, if things change in his surroundings, those symptoms might change as well.’