It is quite common for men and women who have problems with a psychological disorder to also be plagued by a co-occurring alcohol and drug abuse disorder. In truth, it is more common than one would imagine and many individuals currently in drug treatment facilities in Manchester, California may have mental health disorders which have just simply been undiagnosed. Rehabilitation professionals at successful drug rehabilitation programs in Manchester know how to spot persons with co-occurring psychological and substance abuse disorders so that these two concerns can be handled simultaneously while the person is in rehab. Because both need to be addressed, the person should not leave rehab until they are mentally stable, not just off of drubs.