An excerpt from Medicine Versus Politics: Three Tales of Patient Survival.

Deception has always been a weapon, but in our time it has become a system. In medicine especially, where facts should be the most trusted currency, lies can wound as surely as disease itself. Repetition, amplification, and manipulation turn rumor into “truth” at a frightening pace. When politics co-opts this process, the consequences are not merely theoretical; they can be measured in lost trust, delayed care, and preventable deaths.

The familiar claim that a lie repeated often enough becomes accepted as truth is often attributed to Nazi propagandist Joseph Goebbels, though the exact wording does not appear in his published writings. Its persistence is nonetheless revealing. The statement endures because it captures something recognizable: Repetition can create familiarity, and familiarity can be mistaken for credibility.

Psychologists call this the illusory truth effect. A claim repeated often may feel more plausible, even when the listener has previously seen evidence that it is false. In earlier media environments, repetition required control of newspapers, radio stations, or television networks. Today, repetition can be automated. A misleading claim can be reposted, clipped, reframed, promoted, and algorithmically delivered to the same person in multiple forms until it appears to reflect a broad social consensus rather than a coordinated distortion.

That transformation, from repetition to apparent consensus, makes modern deception so difficult to confront. People may encounter the same falsehood across friends, headlines, videos, search results, and tailored feeds. By the time a correction appears, the claim may already feel familiar, socially reinforced, and emotionally true.

The phrase “A lie can travel halfway around the world before the truth puts on its shoes” captures the same danger in a different register. It is commonly attributed to Mark Twain, though its origins are uncertain, and earlier versions have been linked to Jonathan Swift and others. The precise source matters less than the imbalance the saying highlights. Falsehood travels quickly because it can be simple, emotionally charged, and unconstrained by evidence. Truth moves more slowly because it must be checked, qualified, contextualized, and sometimes corrected.

Medicine is especially vulnerable to that imbalance. Clinical truth is rarely conveyed as a slogan. It is probabilistic and inherently uncertain. A physician may say that a treatment is likely to help, that a side effect is uncommon but possible, or that the evidence supports one course while leaving room for judgment. Such language is scientifically honest, but it can sound weak compared with the absolute confidence of misinformation.

The false claim arrives without hesitation: The vaccine is dangerous; the physician is hiding something; academics are beholden to big pharma; AI is more objective than any human. The responsible answer requires explanation. The falsehood requires only repetition.

By the time the patient reaches the exam room, the physician may no longer be discussing a medical decision on neutral ground. The clinician is being asked to compete with a story the patient has heard dozens of times, a story reinforced by political identity, social belonging, fear, and distrust. Evidence alone may not be enough, because the dispute is no longer only about evidence. It is also about who is believed, who is considered loyal, and which sources are allowed to define reality.

This changes the clinical encounter. A recommendation can be perceived as coercion. A question can sound like surveillance. Documentation can seem accusatory. A preventive intervention can be seen as ideological intrusion. Even the physician’s silence may be interpreted as politically charged.

The consequences extend beyond disagreement. Distrust alters behavior. Patients may postpone appointments, withhold information, reject treatment, or avoid institutions they fear. A clinic can remain open, fully staffed, and technically accessible while becoming functionally unavailable to people who no longer believe it is safe to enter. Fear itself becomes a clinical variable, shaping when patients seek care, what they disclose, and whether they return.

That is why pressure on physicians matters as much as misinformation directed at patients. When physicians are pressured to repeat approved narratives, avoid disfavored topics, or place institutional allegiance above clinical judgment, the doctor-patient relationship is strained. When patients fear that entering a clinic may expose them or their families to authorities, access to care effectively disappears.

Medicine should be a sanctuary. Yet falsehoods have invaded the exam room, the emergency room, and even the space between doctor and patient. When ideology overrides science, when misinformation drowns out the truth, and when fear silences trust, patients pay the ultimate price.

These concerns led me to write Medicine Versus Politics: Three Tales of Patient Survival. The book addresses them through fiction: suspicion that fractures a medical community, technology that impersonates a physician’s identity, and immigration enforcement that turns hospitals into places of fear. The narratives are imagined, but the pressures behind them are real.

At the center of these stories is refusal: refusing to let rumor replace science, to let technology counterfeit trust, or to let fear determine who deserves care. This is not refusal for its own sake, nor is it a rejection of accountability. It is fidelity: to evidence, compassion, professional judgment, and the person seeking help.

The stories are unnerving because the world they depict is already recognizable. My hope is that they remind us of what is at stake, not merely medicine as a profession, but medicine as a covenant of truth, care, and trust. Without that covenant, the machinery of health care may continue to run, but healing itself becomes impossible.

Arthur Lazarus is a physician-author whose work spans narrative medicine, physician leadership, artificial intelligence, health care ethics, medical culture, and fiction. He has published more than 500 articles and essays across scientific journals, professional publications, and online platforms.

He is the author of numerous books on narrative medicine, AI in medicine, career development, and the changing moral landscape of health care, as well as fictional series including Rounds Never End, Sick and Systemic, and Real Medicine, Unreal Stories. His writing explores the forces reshaping modern medicine while preserving a central commitment to story, meaning, judgment, and the human relationship at the heart of care.

He shares updates on LinkedIn.