Incarnation and the dynamics of medical promises: DHEA as a fountain of youth hormone.

For more than a decade, the sociology of hope and expectations has gained growing influence in the social studies of health, medicine, and healthcare. This literature has stressed the role of representations of the future-through images, metaphors, theories, or visions-in the medical sector and analyzed the translation of these discursive contents into social practices and organizations. This article builds on these results and intends to explore a dimension that has received less attention: the incarnation of medical promises.