Many people in Northbrook who find their way to drug rehab are dual diagnosis clients with co-occurring mental and substance abuse problems. In fact, as many as 1/3 of those who struggle with mental health issues in Northbrook, Illinois also take part in substance abuse at some time in their lives. These dual diagnosis clients frequently turn to drugs or alcohol to self medicate as a way to ease the symptoms of an underlying psychological condition. Some addicted individuals aren't even diagnosed with a disorder, and only when they make it to a drug rehabilitation facility is this sort of psychological condition discovered. This in itself can help resolve addiction issues and put the individual in a position to receive treatment for both conditions so that they have a good chance of remaining abstinent and psychologically healthy in the future.