Dear Doctor: Our sons are ages 9, 11 and 14, and like all of the other schoolkids we know, they’re hauling around crazy-huge backpacks all day. What does that weight do to a child’s back? Can carrying a heavy backpack every day cause scoliosis?
Dear Reader: We hear from a lot of parents about the hefty load children carry around while they’re at school.
By the time kids stow all of the textbooks, n…