 Constructivists are often social scientists and their interests may not map neatly on to philosophical concerns. They are not usually interested in conceptual analysis so much as in tracing the social processes by which categories are formulated and changed over time. Conrad (2007, 7–8), for example, says he is “not interested in adjudicating whether any particular problem is really a medical problem… I am interested in the social underpinnings of this expansion of medical jurisdiction”.