Attention Deficit Disorder The topic I chose for my research paper on genetic diseases was Attention deficit disorder or a.d.d.. I chose this topic because I found it very interesting. I was interested about how it was classed as a disease, and how people get it. Also how it can greatly affect your life and the people around you. A.D.D. is a disease although it may not seem like a disease to some people. A.d.d. is indeed a disease, it is a medical condition. It starts by a chemical imbalance of the brain. The imbalances vary a lot based on each different person the imbalance will be different. Some of the chemicals that can be imbalanced are delpamine, and imbalances of norpin