It is quite common for men and women who are afflicted with a psychological issue to also have a co-occurring drug and alcohol abuse disorder. In fact, it is more prevalent than one would imagine and a lot of people presently in drug rehab programs in Larkspur, California may have mental health disorders which are often undiagnosed. Rehab professionals at proven alcohol and drug treatment facilities in Larkspur know how to identify persons with co-occurring mental health and drug and alcohol abuse disorders so that these two issues can be simultaneously addressed while the person is in treatment. Simply because both need to be addressed, the client should not leave rehab until they are psychologically stable, not just sober.