It is not uncommon for people who are afflicted with a psychological issue to also struggle with a co-occurring substance abuse disorder. In fact, it is more common than one would imagine and a lot of people currently in drug treatment programs in Modesto may have psychological issues which have just simply been undiagnosed. Rehab specialists at effective alcohol and drug rehab programs in Modesto, California know how to identify persons with co-occurring mental health and alcohol and drug abuse issues so that both issues can be simultaneously addressed while the person is in rehabilitation. Due to the fact both need to be addressed, the individual must remain in rehabilitation until they are psychologically stable, not just off of drubs.