Allen Frances said this quote

“ To become a fad, a psychiatric diagnosis requires 3 preconditions: a pressing need, an engaging story, and influential prophets. The pressing need arises from the fact that disturbed and disturbing kids are very often encountered in clinical, school, and correctional settings. They suffered and cause suffering to those around them—making themselves noticeable to families, doctors, and teachers. Everyone feels enormous pressure to do something. Previous diagnoses (especially conduct or oppositional disorder) provided little hope and no call to action. In contrast, a diagnosis or childhood Bipolar Disorder creates a justification for medication and for expanded school services. The medications have broad and nonspecific effects that are often helpful in reducing anger, even if the diagnosis is inaccurate. ”