Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Robert F Kennedy Jr. wants to make America healthy again. But how unhealthy is the United States? We take a look at some of the key figures and see how the US compares to other countries when it comes to life expectancy, early deaths and chronic disease.