It is quite common for men and women who have problems with a psychological disorder to also struggle with a co-occurring substance abuse disorder. Frankly, it is more widespread than one would think and quite a few men and women currently in drug and alcohol rehabilitation centers in Vista, California may have psychological disorders which are often undiagnosed. Rehabilitation experts at successful drug and alcohol rehabilitation centers in Vista know how to spot individuals with co-occurring mental and alcohol and drug abuse issues in hopes that these two concerns can be simultaneously addressed while the individual is in rehab. Simply because both must be resolved, the person must remain in treatment until they are psychologically stable, not just sober.