It is quite common for people who have problems with a mental health disorder to also have a co-occurring alcohol and drug abuse issue. Frankly, it is more widespread than one would assume and a lot of individuals currently in drug and alcohol rehabilitation centers in Martinez, California may have psychological issues which are often undiagnosed. Treatment professionals at effective alcohol and drug rehabilitation programs in Martinez know how to identify individuals with co-occurring psychological and alcohol and drug abuse issues so that these two concerns can be handled simultaneously while the person is in treatment. Because both need to be addressed, the client should not leave rehabilitation until they are mentally stable, not just abstinent.