Jenna tells us how schoolbooks could be harmful to your health! Doctors say that heavy packs can cause recurring back pain. Learn some tips on how to give your back a break – like finding packs with padded straps and trying to carry only what you need that day.

1. What can heavy backpacks cause to our body? 

2. According to the expert, what should be done to avoid back pain when carrying a backpack?

3. Give other tips to give our back a break.