It is quite common for people who are afflicted with a psychological issue to also be plagued by a co-occurring substance abuse disorder. In fact, it is more widespread than one would assume and many individuals presently in drug rehabilitation centers in Alta, California may have psychological disorders which are often undiagnosed. Rehab experts at proven alcohol and drug treatment facilities in Alta know how to identify persons with co-occurring mental and drug and alcohol abuse issues so that both concerns can be simultaneously addressed while the person is in treatment. Because both must be resolved, the individual must remain in treatment until they are mentally stable, not just sober.