Many individuals in Brussels, Illinois 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 suffer with mental health issues in Brussels, Illinois also become involved in substance abuse at some time in their lives. These dual diagnosis clients typically turn to alcohol or drugs to self medicate as a way to ease the symptoms of an underlying psychological condition. Some addicts aren't even diagnosed with a psychological condition, and only when they begin to receive treatment at a drug rehabilitation center is this sort of psychological condition discovered. This alone can sometimes help resolve addiction issues and put the person in a position to receive rehabilitation for both conditions so that they have a good chance of remaining clean and sober and psychologically healthy in the future.