It is quite common for people who are afflicted with a psychological disorder to also be plagued by a co-occurring drug and alcohol abuse issue. Frankly, it is more widespread than one would imagine and a lot of individuals presently in alcohol and drug rehab centers in Azusa, CA. may have psychological issues which are often undiagnosed. Treatment professionals at effective alcohol and drug treatment facilities in Azusa, California know how to spot persons with co-occurring psychological and substance abuse disorders in hopes that both issues can be simultaneously addressed while the individual is in rehab. Because both need to be addressed, the client must remain in rehabilitation until they are mentally stable, not just sober.