Republican Mistrust in U.S. Healthcare Expands Health Gap

The *Nature Human Behaviour* study documents a widening health gap between Republicans and Democrats. Survey data from 2024 reveal that conservatives are markedly less likely to trust medical professionals, to engage with health services, or to use prescribed treatments for chronic conditions, a pattern that has intensified since the early 2010s.

The Guardian

Two phases are identified. The first, emerging in the 2010s, coincided with education polarization: voters without a college degree increasingly aligned with the right, while college-educated voters moved left, and education proved a strong health predictor. The second phase began during the Covid-19 pandemic, when determinants could no longer fully explain the expanding gap. The research was led by scientist Neil O’Brian of the University of North Carolina-Chapel Hill, with psychologist Jay Van Bavel of New York University.

The Guardian

The 2024 survey shows that self-identified Republicans report lower trust in physicians and medical institutions and are less likely to seek treatment for chronic illnesses. They also exhibit higher prevalence of hypertension, a condition that drives cardiovascular disease—the leading cause of death in the United States. Additionally, conservatives are less likely to visit doctors, to consider antihypertensive medicines safe, and to recognize or seek care for long-COVID symptoms, despite higher exposure risk from lower vaccination rates.

The Guardian

The trust gap threatens to widen existing health inequities, especially as untreated hypertension fuels the nation’s top mortality driver. In several red states, recent legislation has repealed vaccine mandates, reflecting political resistance to public-health directives. Robert F. Kennedy Jr., now occupying a senior health-policy role, has publicly questioned government health information, reinforcing anti-elite sentiments that scholars link to the Republican identity. Critics note that such rhetoric encourages “mental gymnastics,” where individuals reject vaccines yet pursue unproven Covid-19 treatments.

The Guardian

The authors stress that most national health surveys omit political affiliation, limiting systematic tracking. They urge future surveys to embed political questions to monitor the trust gap.

The Guardian

• “Part one is this gap starts to emerge in the 2010s, and it seems like it’s a byproduct of education polarization,” — Neil O’Brian, Political Science Professor, University of North Carolina-Chapel Hill

The Guardian

• “This is a real puzzle,” — Neil O’Brian, Political Science Professor, University of North Carolina-Chapel Hill

The Guardian

• “There is this stream of populism that’s anti-elite and anti-authority that exists in both parties, but is very strong on the right and is really part of the identity of the Trump administration.” — Jay Van Bavel, Professor of Psychology and Neuroscience, New York University

The Guardian

• “We turn to the survey data and show that people on the right are less likely to trust, engage, or use medicines to treat chronic illness relative to the left.” — Neil O’Brian, Political Science Professor, University of North Carolina-Chapel Hill

The Guardian