Many people in Santa Clara, California who find their way to 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 Santa Clara, California also take part in substance abuse at some time in their lives. These dual diagnosis clients often turn to alcohol or drugs to self medicate as a way to relieve the symptoms of an underlying psychological disorder. Some addicted individuals aren't even diagnosed with a disorder, and only when they begin to receive treatment at a drug rehabilitation program is this sort of psychological condition uncovered. This alone can sometimes help resolve addiction issues and put the individual in a position to receive rehabilitation for both conditions so that they have a good chance of remaining clean and sober and psychologically stable in the future.