School backpack overload: Heavy bags can strain kids bodies08/05/2026(Associated Press) - Backpacks often become too heavy for kids, as students carry laptops, textbooks and more. Although 10% to 15% of a child’s body weight is often cited as a backpack guideline, pediatricians say there isn’t enough evidence to establish a one-size-fits-all approach. Instead, the American Academy of Pediatrics warns that backpacks may be too heavy if a child leans forward or struggles to walk. To keep a child's backpack lighter, teachers suggest focusing on essential supplies and avoiding trendy or decorative items. Look at your child's homework schedule: Do they really need to carry all their textbooks and a laptop every day? Experts recommend backpacks with padded straps and compartments to distribute weight more evenly.