Episode 66: The political polarization of health outcomes in the USA

About this episode

The episode discusses how political ideology affects health outcomes in the USA, highlighting a study that shows widening health gaps among conservative Americans.

**Paper:** [The political polarization of health outcomes in the USA](https://doi.org/10.1038/s41562-026-02474-9) **Authors:** Elizabeth Elder, Neil A. O'Brian **Journal:** Nature Human Behaviour, 2026 **Why it matters:** Political ideology has emerged as a measurable social determinant of health in the United States, with conservative Americans showing widening gaps in both clinical biomarkers and mortality that persist after accounting for COVID-19, geography, and demographic change. --- **Summary** To move beyond the well-known limitations of county-level ecological data and subjective self-reports, Elder and O'Brian used individual-level longitudinal data from the Add Health cohort — the same participants tracked from adolescence in 1994 through adulthood — alongside CDC death records. They focused on Waves 4 and 5 of the survey (2008–2009 and 2016–2018), during which trained interviewers collected five objective clinical biomarkers in respondents' homes: BMI, lipid panels, HbA1c (a blood glucose marker), blood pressure, and C-reactive protein (a marker of systemic inflammation). These were combined into a single comorbidity index. In Wave 4, when participants were in their…

People in this episode

Host: Raymond Ruff

Topics covered

• political polarization
• health outcomes
• USA
• clinical biomarkers
• mortality
• social determinants of health

Keywords

• political polarization
• health outcomes
• clinical biomarkers
• mortality
• social determinants of health

Mentioned in this episode

Organizations: Nature Human Behaviour

Books & works: The political polarization of health outcomes in the USA

More episodes of Science TLDR

• Episode 75: Trending — A 5.3-million-year-old deep-sea whale necropolis in the Diamantina Zone · June 12, 2026 · 19 min
• Episode 74: Discovery of TCR-like antibodies to the KRAS G12D neoantigen via in silico-in vitro workflow · June 9, 2026 · 12 min
• Episode 73: Trending — Work from Home and Disability Employment · June 5, 2026 · 23 min
• Episode 72: From free speech advocates to critics: The Trump administration’s new rhetoric promotes support for censorship among Trump voters · June 2, 2026 · 19 min
• Episode 71: MAGE-A4/MAGE-A8-targeted TCR-based bispecific T cell engager in recurrent and/or refractory solid tumors: a phase 1 trial · June 1, 2026 · 22 min
• Episode 70: Language Modeling Materializes a World Model of Protein Biology · May 27, 2026 · 20 min