It is quite common for individuals who struggle with a psychological disorder to also have a co-occurring substance abuse disorder. Frankly, it is more widespread than one would think and a lot of men and women currently in alcohol and drug rehab centers in Iraan may have mental health issues which are often undiagnosed. Rehabilitation experts at proven drug rehab facilities in Iraan know how to identify individuals with co-occurring mental and substance abuse issues in hopes that both issues can be simultaneously addressed while the person is in rehabilitation. Because both need to be addressed, the person should not leave rehabilitation until they are mentally stable, not just off of drubs.