Stark health disparities exist across the United States. Life expectancy is lower than in other wealthy countries – and declining. The richest American men live 15 years longer than their poorest counterparts .

The richest American women live ten years longer. Political differences are an interesting and provocative way of looking at these disparities. Differences are frequently analysed by race , a proxy for other factors that influence health, such as housing, environmental pollution, nutrition and affordable access to health care.

But there are other ways to cut the data. This includes by state – whether it is “red” (governed by the Republican party) or “blue” (by the Democrats). We can also look at individual political affiliation.

One new study from the US looks at political polarisation as a risk factor for individual and collective wellbeing. It finds polarisation – where opinions and beliefs become concentrated at opposing extremes – has a major impact on health. The paper explores the health risks of polarisation using the COVID pandemic as a case study.

COVID saw Americans die at far higher rates than people in other wealthy nations. Australia escaped the high death toll. But there are still significant lessons we can learn – about how increasing polarisation affects our health and wellbeing, and for the effective management of pandemics and other health crises.

Political orientation and health The relationship between important health measures, po.