The Crisis of Trust: Why Smokers Don't Believe Public Health Anymore—and Why It Matters

Public health communication depends on trust. The message is only as effective as the messenger is credible, and credibility is earned over decades and lost in moments. The tobacco control community has, over the past half-century, built an extraordinary reservoir of trust—the public believes, correctly, that smoking is deadly, and that belief is the foundation of the most successful behavior-change campaign in history. But trust is not uniform across populations, and it is not permanent. Among the smokers who remain—disproportionately poor, marginalized, and skeptical of authority—trust in public health institutions is fragile, and in some communities, it is broken. The erosion of trust is not primarily the fault of the smokers who have lost it. It is the consequence of communication choices that prioritized message simplicity over accuracy, institutional interests over transparency, and the precautionary principle over the evidence.

The most visible manifestation of the trust crisis is the widespread misperception of the relative risks of smoking and vaping. In the United States, the proportion of adults who correctly believe that e-cigarettes are less harmful than cigarettes has fallen from approximately 40% in 2012 to below 20% in recent years—a trend that has accelerated even as the scientific evidence for the relative safety of vaping has strengthened. The misperception is not random. It is correlated with exposure to public health messaging that emphasizes the risks of vaping without comparative context—messaging that accurately identifies the risks of vaping but systematically understates the difference in risk between vaping and smoking. The public has internalized the message that vaping is dangerous. It has not internalized the message that smoking is vastly more dangerous. The communication strategy that produced this outcome prioritized the protection of nonsmokers from potential harm over the provision of accurate risk information to smokers. The result is a population where millions of smokers continue to smoke because they believe—incorrectly—that switching to vaping would not meaningfully reduce their risk.

The EVALI crisis of 2019—an outbreak of severe lung injury associated with vaping, concentrated among users of illicit THC cartridges containing vitamin E acetate—is a case study in how public health communication can inadvertently erode trust. The CDC's initial messaging on EVALI emphasized the association with 'e-cigarette or vaping product use,' without distinguishing between nicotine vaping products (which were not implicated in the outbreak) and illicit THC cartridges (which were). The messaging accurately reflected the initial uncertainty about the cause of the outbreak, but it had the effect—predictable, if unintended—of conflating the risks of legal nicotine vaping with the risks of illicit THC vaping. Surveys conducted after the EVALI outbreak found that a majority of smokers believed that nicotine e-cigarettes had caused the lung injuries—a belief that the CDC's messaging, while technically accurate, had done nothing to prevent and much to encourage. The EVALI communication failure was not an isolated incident. It was an example of a pattern: public health agencies, when communicating about emerging risks, default to the broadest possible warning, and the specificity required for accurate risk communication is sacrificed to the precautionary impulse to warn against everything.

The institutional dynamics that produce this pattern are understandable but not excusable. Public health agencies face asymmetric risks: if they under-warn about a risk that materializes, they are blamed for failing to protect the public; if they over-warn about a risk that does not materialize, the cost is borne by the public (in the form of distorted risk perceptions and suboptimal health behaviors) but the agency is rarely held accountable. The incentive structure favors over-warning. The career incentives within public health agencies reinforce this bias: the professional who sounds the alarm about a potential risk is a hero; the professional who argues for nuance and proportionality is a footnote. The institutional culture of public health communication—particularly in the US CDC and the WHO—has not developed the capacity for the kind of nuanced, comparative risk communication that the nicotine landscape requires. The result is messaging that protects the institution at the expense of the accuracy that the public—and particularly the smokers who are making decisions about their health—deserve.

The trust crisis has practical consequences. Smokers who don't trust public health agencies are less likely to attempt to quit, less likely to use evidence-based cessation methods, and more likely to dismiss health warnings as exaggerated or manipulative. The populations where trust is lowest—low-income communities, communities of color, rural populations—are the populations where smoking prevalence is highest and cessation rates are lowest. The trust crisis is not just a communication problem. It's a health equity problem. Rebuilding trust requires more than better messaging. It requires institutional reform: communication policies that prioritize accuracy over simplicity, accountability mechanisms that penalize misleading or incomplete risk communication, and meaningful engagement with the communities whose trust has been eroded. The public health community that lectures smokers about the risks of their behavior, while simultaneously misleading them about the relative risks of the alternatives, is a community that has lost the moral authority to lecture.

The path to rebuilding trust is not mysterious. The UK's approach to nicotine communication—which explicitly acknowledges that vaping is substantially less harmful than smoking, which provides comparative risk information in plain language, and which engages with the remaining uncertainties honestly rather than using them as a basis for blanket warnings—has been associated with faster declines in smoking prevalence and more accurate public risk perceptions compared to the US approach. The UK's public health agencies have not been immune to controversy—the '95% safer' figure has been debated—but the overall approach, which treats the public as capable of understanding nuance and making informed decisions, has been more successful than the precautionary approach that treats the public as incapable of processing complexity and in need of protection from information that might be misunderstood. Trust is built on respect. The public health community that respects the public's capacity for informed decision-making earns the trust that makes informed decision-making possible.

Shareable insight: Most smokers now believe—incorrectly—that vaping is as dangerous as smoking. This is not a failure of public comprehension. It's a failure of public health communication. Decades of 'there is no safe tobacco product' messaging, combined with media coverage that amplifies the risks of vaping without comparative context, have left smokers with risk perceptions that discourage the switch from smoking to vaping—exactly the opposite of what evidence-based public health should be trying to achieve.