It is not uncommon for men and women who are afflicted with a mental health disorder to also be plagued by a co-occurring substance abuse disorder. Frankly, it is more prevalent than one would assume and a lot of people presently in drug rehab centers in Annapolis, IL. may have psychological disorders which are often undiagnosed. Treatment specialists at proven drug rehabilitation centers in Annapolis, IL. know how to identify persons with co-occurring mental health and substance 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 person should not leave rehabilitation until they are psychologically stable, not just sober.