Porter ....did you feel

rkirish - There are studies that demonstrate that people. especially kids, are injuring their bodies by carrying a backpack. Filled with books, the bag is too heavy to carry and puts too much stress on a person's back and shoulders. I read that some kids are pulling their backpacks on a roller, similar to the ones used at an airport. It's not uncommon to see a person with a career pulling their briefcases behind them. Have you heard of this before? I hope my explanation is clear. travel lightly, anawar