The point of this article was to identify susceptibility factors that may precede the onset of anorexia nervosa. As noted in our article, other recent studies clearly show that anxious, obsessional, and perfectionistic traits commonly occur in childhood and predate the onset of anorexia nervosa. It is also important to recognize that obsessional traits that are known to be common in anorexia nervosa might be described as OCD, obsessive-compulsive personality disorder, a rigid perfectionistic temperament, or other diagnoses depending on the assessment instrument and perhaps the bias of the investigator. It is well recognized by experts in the field of behavior that a DSM diagnosis, while a necessary attempt to categorize illness, may not necessarily reflect how behavior is coded in the brain. We need to continue to better characterize these traits and understand their pathophysiology rather than get caught up in unanswerable arguments about whether anorexia nervosa is a variant of another DSM diagnostic category.