Introduction: Testing and Refining Marc Lewis's Critique of the Brain Disease Model of Addiction.

In this introduction we set out some salient themes that will help structure understanding of a complex set of intersecting issues discussed in this special issue on the work of Marc Lewis: (1) conceptual foundations of the disease model, (2) tolerating the disease model given socio-political environments, and (3) A third wave: refining conceptualization of addiction in the light of Lewis's model.