Diagnoses of Attention Deficit Hyperactivity Disorder (ADHD), like those of food allergies, have risen dramatically in children over the last few generations. And again like food allergies, the cause is unclear. However, a team of researchers in England recently identified a genetic link for the disorder [1]. The study, published in The Lancet, found that children with ADHD were more likely to have small segments of their DNA duplicated or missing than other children that don’t have the disorder.