It is not uncommon for men and women who have problems with a mental health issue to also be plagued by a co-occurring drug and alcohol abuse issue. In truth, it is more prevalent than one would think and quite a few people presently in drug rehabilitation facilities in Hercules, CA. may have psychological issues which have just simply been undiagnosed. Rehabilitation professionals at successful drug and alcohol treatment programs in Hercules, California know how to identify individuals with co-occurring psychological and alcohol and drug abuse disorders so that these two concerns can be simultaneously addressed while the individual is in treatment. Due to the fact both need to be addressed, the person must remain in rehab until they are psychologically stable, not just sober.