Many people in Hamburg who end up in drug rehab are dual diagnosis clients with co-occurring mental and substance abuse problems. Actually, as many as 1/3 of those who suffer with mental health issues in Hamburg also become involved in substance abuse at some time in their lives. These dual diagnosis clients often turn to alcohol or drugs to self medicate as a way to ease the symptoms of an underlying psychological condition. Some addicts aren't even diagnosed with a psychological condition, and only when they make it to a drug rehabilitation center is this sort of issue brought to light. This alone can sometimes help resolve addiction issues and put the individual in a position to receive rehabilitation for both conditions so that they have a strong chance of remaining abstinent and psychologically stable in the future.