This chapter builds an analysis around the health aspects of theNational Strategy for Research and Data on Children’s Lives 2011-2016.Adopting a genealogical approach to the present, it explores the meaning of ‘health’ – in the case of children – in the context of the Department of Health’s Policy Framework for a Healthier Ireland 2012-2020.Drawing on Foucault’s notion of biopolitics, the chapter argues that what is unique to the intersection of ‘childhood’ and ‘health’ is the way this articulates what might be described as a ‘biosocial imperative’: the ways in which ‘incomplete’ life is strategically acted upon through social technologies with a view to governing the future.By approaching the National Strategy via the past, this chapter shows how we have moved from biosocial technologies whereby childhood is a means to securing strategic ends, to a biosocial apparatus that constructs children as actors to be acted upon with a view to governing the future.