Many people in Delavan, 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 Delavan, Illinois also become involved in substance abuse at some time in their lives. These dual diagnosis clients typically turn to drugs or alcohol to self medicate as a way to ease the symptoms of an underlying psychiatric issue. Some addicts aren't even diagnosed with a psychological condition, and only when they make it to a drug rehab program is this sort of psychological condition uncovered. This in itself can sometimes help resolve addiction issues and put the person in a position to get rehabilitation for both conditions so that they have a strong chance of remaining clean and sober and mentally healthy in the future.