It is quite common for individuals who have problems with a psychological issue to also struggle with a co-occurring drug and alcohol abuse disorder. In truth, it is more common than one would assume and quite a few men and women currently in drug treatment centers in Twain, California may have mental health disorders which have just simply been undiagnosed. Treatment specialists at successful drug rehabilitation programs in Twain know how to identify individuals with co-occurring mental and alcohol and drug abuse issues so that both issues can be handled simultaneously while the individual is in rehab. Simply because both must be resolved, the person must remain in treatment until they are mentally stable, not just sober.