It is not uncommon for people who have problems with a mental health issue to also have a co-occurring substance abuse disorder. In fact, it is more common than one would imagine and quite a few men and women presently in alcohol and drug treatment facilities in Redwood Valley, California may have mental health disorders which are often undiagnosed. Rehabilitation professionals at effective drug and alcohol rehab centers in Redwood Valley know how to spot individuals with co-occurring mental and drug and alcohol abuse issues so that these two issues can be simultaneously addressed while the person is in rehabilitation. Due to the fact both must be resolved, the client should not leave rehabilitation until they are mentally stable, not just sober.