Many people in Terre Haute, Indiana 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 suffer with mental health issues in Terre Haute also take part in substance abuse at some point 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 psychological condition. Some treatment clients aren't even diagnosed with a disorder, and only when they make it to a drug treatment center is this sort of issue discovered. This alone can 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 clean and sober and mentally stable in the future.