Research from Akron General Medical Centre in Ohio found that a quarter of 400 nine and ten-year-olds in that state were lugging books weighing more than 20% of their body weight. That's comparable to an 80 kilo man lugging a small refrigerator!!!
Children carrying more than ten to 20% of their weight risk neck and back problems, doctors say. If you can, arrange for kids to get 2 copies of their big books.
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