It is quite common for people who have problems with a mental health disorder to also struggle with a co-occurring substance abuse disorder. In fact, it is more widespread than one would assume and quite a few individuals presently in drug and alcohol treatment centers in Concord, California may have mental health disorders which have just simply been undiagnosed. Rehabilitation specialists at effective drug and alcohol treatment facilities in Concord know how to spot persons with co-occurring mental and substance abuse issues in hopes that these two concerns can be simultaneously addressed while the individual is in rehab. Simply because both need to be addressed, the client should not leave rehabilitation until they are psychologically stable, not just off of drubs.