It is quite common for men and women who have problems with a psychological disorder to also struggle with a co-occurring substance abuse issue. Frankly, it is more prevalent than one would think and many individuals currently in drug and alcohol treatment programs in Johannesburg, California may have mental health issues which are often undiagnosed. Rehab experts at proven alcohol and drug rehab facilities in Johannesburg know how to identify persons with co-occurring psychological and drug and alcohol abuse disorders so that both issues can be handled simultaneously while the individual is in rehab. Because both must be resolved, the person should not leave treatment until they are mentally stable, not just sober.