Does Sugar Make Kids Hyper?

The myth that just won't go away

Every parent has seen it: kids bouncing off the walls at a birthday party and blaming the cake and candy. But multiple double-blind studies have shown that sugar does not cause hyperactivity in children. When parents don't know whether their child received sugar or a placebo, they can't tell the difference in behavior. The 'sugar high' is a classic example of confirmation bias in action.