By Farid Sabet-Sharghi, MD

Somewhere over the last two decades, medicine began to drift into strange territory. Authority (once grounded in evidence, humility, and disciplined expertise) became diluted. Being loud, charismatic, or highly visible somehow became a substitute for scientific credibility.

We’ve long had celebrity doctors, but a new hybrid has emerged: Physicians who are not celebrities in the traditional sense, yet who speak with sweeping certainty far outside their field of training. A neurosurgeon offering authoritative pronouncements on nutrition science. A cardiothoracic surgeon reinventing himself as a mental health guru. Physicians who left clinical medicine years ago now deliver confident takes on vaccines, metabolism, trauma, and every other topic that captures public attention.

Some gain wide audiences through media. Others simply become the loudest voices in the room. Both end up treated as universal authorities despite the absence of genuine expertise in the areas they opine on. This is not just unhelpful. It is dangerous.

As physicians, we are trained to live inside uncertainty. We follow advisory panels, research consortia, meta-analyses, and experts in subspecialties because medicine is too intricate to be navigated by charisma. The mark of a fair-minded clinician-scientist is the ability to say, “I don’t know. Let’s look at the data.” It is a form of intellectual honesty that protects our patients.

Yet the rise of loud, opinionated medical voices (some famous, some not) has begun to distort the culture of medicine itself. The more these voices speak with unjustified confidence, the more the public becomes confused about what expertise actually means. Specialized training is flattened. Years of methodologic rigor are dismissed. And evidence becomes overshadowed by the performance of certainty.

But the most subtle harm is the one rarely discussed: This trend discourages younger physicians from pursuing the difficult, lifelong commitment to evidence-based thinking. Why spend decades mastering critical appraisal and learning one’s limits if all that seems to matter is a strong online presence, a slick soundbite, or an authoritative tone?

What emerges is almost a quasi-religious following, belief anchored in personality rather than data. And once medicine becomes about personalities, the foundation of scientific practice begins to erode.

Celebrity medicine and opinion-driven medicine share the same flaws:

- Reward confidence, not accuracy: They reward confidence, not accuracy.

- Amplify noise, not knowledge: They amplify noise, not knowledge.

- Elevate voices, not evidence: They elevate voices, not evidence.

What we need (urgently) is to reclaim the culture of humility. To reaffirm that medicine is a profession defined not by opinions, but by the willingness to be corrected by data. To remind ourselves, and the public, that real expertise is narrow, hard-earned, and never absolute.

We do not need more universal commentators. We need more physicians who are willing to say, “This is not my field,” and then point to the experts who have truly done the work.

Farid Sabet-Sharghi is a psychiatrist.