The Age of Diagnosis The Age of Diagnosis Suzanne O'Sullivan

The Age of Diagnosis

When Medical Naming Does More Harm Than Good

by Suzanne O'Sullivan

21 min read

About This Book

The Diagnosis Dilemma (2025) contends that contemporary healthcare and society have grown dangerously preoccupied with diagnostic naming, widening disease categories to the point where normal human variation gets medicalized. The work explores how assigning clinical names—from neurodevelopmental differences to chronic unexplained conditions—influences treatment access, group belonging, and personal sense of self, with outcomes that range from helpful to harmful. The book advocates for a measured, clinically grounded stance that weighs diagnostic benefit against potential harm from labeling, unnecessary intervention, and false confidence.

Who Should Read This?

  • Healthcare professionals questioning diagnostic expansion and categorical drift
  • Health policy analysts developing research-backed medical standards
  • Individuals trying to understand contemporary diagnosis trends

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