Picture your kids when they bound in the door after school. Notice their posture. Are their shoulders hunched forward and their heads facing down to support the weight of their backpacks? If so, have any of your children complained of back pain?
Picture your kids when they bound in the door after school. Notice their posture. Are their shoulders hunched forward and their heads facing down to support the weight of their backpacks? If so, have any of your children complained of back pain?