Childhood overweight is a big problem that needs to be stopped. Some studies suggest that focusing on boys and girls separately might work better. In Alberta, Canada, researchers looked at 3421 grade five students to see if there were differences between boys and girls in being overweight, what they ate, and how active they were. They found that more boys were overweight than girls, especially in towns and cities. Boys were more active than girls, but their diets were worse. Boys ate more fat and fewer fruits and vegetables. This shows that boys need to eat healthier, while girls need to be more active to prevent overweight.