It is quite common for individuals who struggle with a psychological issue to also be plagued by a co-occurring drug and alcohol abuse issue. Frankly, it is more prevalent than one would think and a lot of individuals currently in drug and alcohol rehab programs in Altadena, CA. may have psychological issues which have just simply been undiagnosed. Rehabilitation specialists at effective drug treatment centers in Altadena, California know how to identify persons with co-occurring mental and drug and alcohol abuse issues in hopes that these two issues can be handled simultaneously while the individual is in rehabilitation. Due to the fact both need to be addressed, the client must remain in rehabilitation until they are mentally stable, not just abstinent.