Many addicted individuals in Castleton, Illinois 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 Castleton 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 in an attempt to relieve the symptoms of an underlying psychiatric condition. Some addicts aren't even diagnosed with a disorder, and only when they make it to a drug rehabilitation program is this sort of psychological condition discovered. This in itself can help resolve addiction issues and put the individual in a position to get rehabilitation for both conditions so that they have a strong chance of remaining abstinent and mentally stable in the future.