It is not uncommon for people who are afflicted with a psychological issue to also be plagued by a co-occurring drug and alcohol abuse disorder. Frankly, it is more common than one would imagine and many men and women currently in drug treatment centers in Marysville, California may have psychological issues which are often undiagnosed. Rehabilitation professionals at proven alcohol and drug rehabilitation centers in Marysville know how to identify individuals with co-occurring mental and alcohol and drug abuse disorders in hopes that these two issues can be simultaneously addressed while the individual is in treatment. Simply because both must be resolved, the individual must remain in rehab until they are mentally stable, not just abstinent.