Many people in Sheffield who end up in 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 Sheffield, 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 in an attempt to alleviate the symptoms of an underlying psychological issue. Some treatment clients aren't even diagnosed with a psychological condition, and only when they begin to receive treatment at a drug rehab facility is this sort of psychological condition brought to light. 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 good chance of remaining clean and sober and psychologically stable in the future.