Many people in Bishop Hill, Illinois 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 suffer with mental health issues in Bishop Hill also take part 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 alleviate the symptoms of an underlying psychiatric issue. 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 issue brought to light. This in itself can sometimes help resolve addiction issues and put the person in a position to receive rehabilitation for both disorders so that they have a good chance of remaining abstinent and mentally stable in the future.