Many addicted individuals in Crystal Lake, IL. 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 struggle with mental health issues in Crystal Lake, IL. also become involved 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 relieve the symptoms of an underlying psychiatric disorder. Some addicts aren't even diagnosed with a psychological condition, and only when they begin to receive treatment at a drug rehabilitation facility is this sort of psychological condition brought to light. This in itself can help resolve addiction issues and put the person in a position to receive rehabilitation for both conditions so that they have a strong chance of remaining clean and sober and psychologically healthy in the future.