The aim of project “Understanding our concepts of health and disease” (UHD) is to develop our understanding of our concepts of health and disease and its connection to health inequalities. To achieve this, UHD will combine traditional philosophical theorizing with new results from experimental philosophy. The first part of the project, in collaboration with Somogy Varga, will examine our concepts of health and disease using experimental philosophy. Based on these results, the second part of the project will then suggest revisions to these concepts, guided by normative considerations, such as the need to combat existing and rising health inequalities.