It is quite common for men and women who have problems with a psychological issue to also be plagued by a co-occurring alcohol and drug abuse issue. In fact, it is more common than one would think and a lot of men and women currently in drug and alcohol treatment facilities in Villa Park, CA. may have psychological disorders which are often undiagnosed. Treatment specialists at effective alcohol and drug treatment centers in Villa Park know how to identify individuals with co-occurring mental health and substance abuse issues so that both issues can be simultaneously addressed while the individual is in rehab. Simply because both must be resolved, the client should not leave rehabilitation until they are mentally stable, not just sober.