It is not uncommon for men and women who are afflicted with a mental health issue to also be plagued by a co-occurring alcohol and drug abuse disorder. In fact, it is more common than one would think and many men and women presently in drug and alcohol rehab centers in Forest Knolls, California may have mental health issues which are often undiagnosed. Rehabilitation specialists at effective drug and alcohol treatment programs in Forest Knolls know how to spot individuals with co-occurring psychological and drug and alcohol abuse disorders so that these two concerns can be simultaneously addressed while the person is in rehab. Simply because both need to be addressed, the person should not leave treatment until they are mentally stable, not just abstinent.