Abstract
Philosophers of medicine have long debated the possibility of a/the definition of health, but they have yet to fully reflect on the intriguing observation that there is still no theory of health within the medical sciences similar to general theories in other sciences. In this chapter, I provide some reasons for why this lack persists and why philosophers have not been particularly helpful or even interested in filling it. After clarifying why such a theory could be useful, I discuss five general features of medical theories and how one could evaluate the utility of a given proposal. With these features in mind, I suggest that philosophers and scientists work together on analyzing actual medical research (experimental analysis), and the ways in which a theoretical construct of ‘health’ is being progressively identified and measured therein. I conclude by suggesting that research fields studying stress and aging might be particularly helpful in developing candidates for theory construction due to their broad scope, specificity, and potentially integrative explanations.