May 06, 2025

Why Medicine Has Gone Too Far, The Problem With Getting A Diagnosis & Why Early Detection Is Not Always A Good Thing with Dr Suzanne O'Sullivan #553

1 hour 50 minutes

Could our healthcare system be making us sicker rather than healthier? In the UK, autism diagnoses have increased by a staggering 787% between 1998 and 2018, and one in five people now has some form of mental health disorder. But what if some of our health struggles aren't diseases to be cured, but normal human experiences being medicalised?

This week, I'm joined by Dr Suzanne O'Sullivan, a consultant in clinical neurophysiology and neurology at The National Hospital for Neurology and Neurosurgery, who specialises in the investigation of complex epilepsy and also has an active interest in psychogenic disorders.

Her latest book, The Age of Diagnosis: Sickness, Health, and Why Medicine Has Gone Too Far, aims to challenge long-held assumptions about medical progress and change the way we think about our health.

In this thought-provoking conversation, we explore:

Why giving someone a diagnosis is never neutral – it can fundamentally change how a person views themselves, their body and their future possibilities

How the definition of autism has dramatically expanded over the past few decades from its original concept of "extreme autistic aloneness" to now potentially including 1 in 20 children in Northern Ireland

Why screening for diseases like prostate cancer can lead to unnecessary treatment

The potential problems of genetic testing - when results are misinterpreted or used without proper context, especially with tests that aren't clinical grade

Why early detection and treatment aren't always better, particularly when it turns healthy people into patients decades before they might develop symptoms

The profound story of how Suzanne diagnosed a rare genetic condition in a 15-year-old girl, only to question whether she had actually done the right thing by medicalising someone who believed herself to be healthy

This is a nuanced, compassionate discussion that challenges many of the widely held assumptions in modern healthcare and I would urge you to listen with an open mind. Throughout our conversation, Suzanne emphasises that she's not arguing against the existence of these conditions or suggesting everyone should refuse diagnosis.

Rather, she encourages both patients and doctors to consider whether medicalising our struggles is always the right approach. I hope you enjoy listening.

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Show notes https://drchatterjee.com/553

DISCLAIMER: The content in the podcast and on this webpage is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your doctor or qualified healthcare provider. Never disregard professional medical advice or delay in seeking it because of something you have heard on the podcast or on my website.

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By Dr Rangan Chatterjee: GP & Author

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