It is not uncommon for individuals who struggle with a psychological issue to also struggle with a co-occurring drug and alcohol abuse disorder. In fact, it is more common than one would assume and quite a few men and women currently in drug and alcohol treatment programs in Napa, CA. may have psychological disorders which have just simply been undiagnosed. Rehab experts at effective drug rehab facilities in Napa know how to identify individuals with co-occurring mental and drug and alcohol abuse disorders so that both issues can be simultaneously addressed while the individual is in treatment. Due to the fact both must be resolved, the client should not leave treatment until they are mentally stable, not just abstinent.