It is not uncommon for men and women who are afflicted with a psychological disorder to also have a co-occurring substance abuse disorder. Frankly, it is more common than one would imagine and quite a few individuals presently in alcohol and drug rehabilitation centers in Guadalupe, California may have mental health issues which are often undiagnosed. Rehab professionals at effective drug and alcohol rehabilitation facilities in Guadalupe know how to identify individuals with co-occurring mental and drug and alcohol abuse issues so that these two concerns can be simultaneously addressed while the person is in rehab. Simply because both must be resolved, the individual must remain in treatment until they are psychologically stable, not just abstinent.