Backpacks are everyday piece of equipment for students that can be harmful. The weight you carry on your back should never exceed 15% of your body weight. Students typically carry 25-35% of their body weight. This becomes a very important health issue because your bones are still growing and adding too much weight puts stress on you body and can cause permanent damage.
For more tips on picking, wearing, and packing your backpacks visit this website: http://www.mayoclinic.com/health/school-backpacks/CC00079
