Originally Posted by
Tatsy 
Yes, the TIQ/THIQ theory was misinterpreted in the early 70s and then latched upon by the addiction treatment centres, as support for the AA disease model from the 1930s.
Resentment is the "number one" offender. It destroys more alcoholics than anything else. From it stem all forms of spiritual
disease,
This is the only time the word disease appears in the AA program as set out in the big book. It was and is the medical community that identify alcoholism as a disease.
As it was explained to me recently by a professor of psychiatry who has spent the last thirty years researching alcoholism, "it is a brain disease, with both genetic and environemntal components" Further he drew a clear distinction between sufferers of alcohol used disorder in the mild to moderate range and the extreme types for which he feels AA still has the most succesful treatment model. i.e. conversion experience. This is from a man who set out to prove AA didn't work.
His team had an article on this site about research into the link between alcoholism and depression.