Magazine article: Sugar consumption may exacerbate attention deficit disorder (ADD) in children. A recent study found that children produce large amounts of adrenaline within hours after consuming large amounts of sugar. This increase in adrenaline is especially noticeable if the source of sugar is candy, in which case the sugar' s effects are not ameliorated by the ingestion of other foodstuffs.
Increased adrenaline production can make ADD more severe in children is an assumption on which the argument in the magazine article depends.