It is quite common for people who have problems with a mental health issue to also have a co-occurring substance abuse disorder. Frankly, it is more common than one would think and quite a few individuals presently in drug and alcohol rehab centers in Lakewood, CA. may have psychological issues which are often undiagnosed. Treatment specialists at proven alcohol and drug treatment programs in Lakewood, California know how to identify persons with co-occurring mental health and substance abuse disorders so that these two concerns can be handled simultaneously while the individual is in rehab. Because both must be resolved, the client should not leave treatment until they are mentally stable, not just sober.