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The different age ranges of students included in the studies may explain some of this variation, but irrespective of age there is a considerable number of schoolchildren carrying in excess of 1/8 of their body weight.
When schoolchildren put textbooks into “Book Monster”, the weight of schoolbag transforms the shape and size of teeth. children are able to know easily if their schoolbag is overweight from the shape of teeth.
National Taipei University of Tech
Taipei City, Taiwan
National Taipei University of Tech
Taipei City, Taiwan
National Taipei University of Tech
Taipei, Taiwan
Chia Hao Hung
