 Dysfunction forms a central element of the most widely discussed analytic definition of mental disorder, introduced in  Section 3.  The notion of dysfunction applies in two distinct ways in Wakefield’s harmful dysfunction analysis, one way avowedly objective, and the other not (see  §4.4).  In the first, dysfunction occurs in some part or parts of a bodily or neural system. That dysfunction in turn causes dysfunction in some part or parts of the individual’s social and personal system (grounding the normative judgment of harmfulness). Only the first kind of dysfunction is claimed to permit non-evaluative description.