Health may be more complicated than a label, a new book argues. Maybe: test and diagnose less.

‘[W]e should … be careful about doling out diagnoses, says Dr. Suzanne O’Sullivan, an Irish neurologist and the author of a new book, The Age of Diagnosis: How Our Obsession With Medical Labels Is Making Us Sicker.

In her book, O’Sullivan argues that our eagerness to diagnose, preemptively screen, and otherwise push these new tools to their limits is creating problems that deserve to be taken more seriously. She describes mutually reinforcing trends — the patient’s insistence on certainty and the doctor’s desire to avoid being blamed for missing something — that are driving clinical practice toward overdiagnosis. The phenomenon is even leading to more instances of doctors diagnosing certain cancers by 50 percent or more, due to the availability of new imaging tech that can detect even minuscule traces of abnormal cells.

Overdiagnosis can cause real harm. And so O’Sullivan advocates for “slow medicine,” in which doctors and patients take time to develop a relationship, monitor symptoms, and take a great deal of care before naming a condition — an approach that may sound quaint in an era of rapid-testing but something she says is actually more in tune with the reality that diagnosis is partly an art.…’ Dylan Scott via Vox