It is quite common for people who are afflicted with a psychological disorder to also have a co-occurring drug and alcohol abuse issue. Frankly, it is more widespread than one would imagine and many men and women presently in drug treatment facilities in Glendale, CA. may have mental health disorders which are often undiagnosed. Rehab professionals at successful drug treatment centers in Glendale, California know how to identify individuals with co-occurring mental health and alcohol and drug abuse issues so that these two concerns can be simultaneously addressed while the individual is in treatment. Due to the fact both need to be addressed, the person should not leave rehab until they are mentally stable, not just sober.