Many addicted individuals in Willow Creek, California who end up in drug rehab are dual diagnosis clients with co-occurring mental and substance abuse problems. Surprisingly, as many as 1/3 of those who struggle with mental health issues in Willow Creek also become involved in substance abuse at some point in their lives. These dual diagnosis clients typically turn to alcohol or drugs to self medicate as a way to alleviate the symptoms of an underlying psychological condition. Some addicted individuals aren't even diagnosed with a disorder, and only when they begin to receive treatment at a drug treatment facility is this sort of issue discovered. This alone can sometimes help resolve addiction issues and put the individual in a position to receive rehabilitation for both disorders so that they have a strong chance of remaining abstinent and mentally stable in the future.