My son has ADHD and I know how important a good breakfast is for him. When he gets a nutritious breakfast -- preferably with some whole grains -- and gets good exercise in the morning, he's always more focused and better able to control his behavior. Previous research has confirmed what I (and probably every other parent) knew: Breakfast does a kid's body -- and mind -- good.

A new study supports this previous finding and takes it one step further. It turns out that, while beneficial for all, the benefits of breakfast vary in boys and girls. Researchers had half of students in the study eat a standardized breakfast while the other half didn't eat breakfast. All students later took a test to measure cognitive ability and mood. A week later, the test was repeated except the previous non-breakfast eaters ate a morning meal and vice versa.

While there was measurable improvement in focus, all of the students who ate breakfast reported feeling more alert. In addition, boys reported having an elevated mood and the boys performed better on visuospatial memory tests.