It is quite common for people who have problems with a mental health issue to also have a co-occurring substance abuse disorder. In truth, it is more prevalent than one would assume and many individuals presently in alcohol and drug rehabilitation centers in Tuscola, Illinois may have psychological disorders which are often undiagnosed. Rehab experts at proven alcohol and drug rehab programs in Tuscola, Illinois know how to spot persons with co-occurring psychological and drug and alcohol abuse disorders in hopes that both concerns can be handled simultaneously while the individual is in rehab. Because both need to be addressed, the individual must remain in rehab until they are psychologically stable, not just sober.