Many people in Shrewsbury, Pennsylvania 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 Shrewsbury also become involved in substance abuse at some point in their lives. These dual diagnosis clients frequently turn to drugs or alcohol to self medicate as a way to ease the symptoms of an underlying psychological disorder. Some addicted individuals aren't even diagnosed with a disorder, and only when they begin to receive treatment at a drug rehab center is this sort of issue discovered. This in itself can help resolve addiction issues and put the individual in a position to receive rehabilitation for both disorders so that they have a strong chance of remaining clean and sober and mentally healthy in the future.