Our expert says:
Personally, I don't find the theory that things in someone's past DROVE them to become adicted, to be especially useful in therapy. Ongoing therapy is however important, as too many "rehab" programs are limited to a short period of inpatient care, with inadequate follow-up.
In answer to your specific question - no. Extensive drug and/or alcohol abuse over years can cause brain damage or other physical damage, but does not generate chemicals that mimic the effects of drug taking or alcohol abuse - if they look as though they've been using, it usually means that they have been using. Som,e blood or urine tests can be used to check for this if the person is not being frank, but obviously only with their cooperation.
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