Medically reviewed by Al Gilpin, M.D. McLeod Orthopaedics
First, the clothes for Physical Education. Add a pencil case, calculator, water bottle and MP3 player. Stuff in a couple textbooks. Don’t forget one or two 5-subject notebooks. Top it off with some keys or hand sanitizer. And voila’! You have a student’s school backpack. If your student’s backpack is like most these days, it may weigh 20 to 25 pounds, about 20%+ of your student’s total body weight. Today’s school bags are twice as heavy as ten years ago. One study found that more than 5 out of 10 of U.S. school students carry a backpack that’s too heavy for them.