Is drug dependence a disease or choice?

Good Question: And controversial. Drug dependence starts as a choice to start and can become a disease because it causes impairment in function (the basic definition of disease which itself is hard to define). However it is debatable whether or not it is a disease. There are many opinions. Here is an interesting article: http://www.Ncbi.Nlm.Nih.Gov/pmc/articles/pmc3047254/ best regards.