I'm pretty sure that alcohol abuse/addiction will eventually be classified as a disorder, rather than a disease. It doesn't really meet the scientific classification of a disease in the traditional definition of disease model, but there are definitely physiological components to addiction (i.e. seratonin and GABA uptake receptor malformations in the brains of those who have "issues" with alcohol). But the same physiological changes happen in people who become addicted to caffeine, but we don't call caffeine addiction a disease. I suppose the argument could be made that the combination of the physiological changes in the brain accompanied by psycho-sociological and maladaptive relationship changes could make a strong argument for classification as a disease. But I just don't get how spirituality has any play into a medical disease model.