2019 Back to school season has already begun. The list of school items children have to bring is extensive. Their backpack should not burden them any more than the equipment and the books. NYC’s Best Physical Therapist, Dr. Karena Wu returns to NBC News Better and Facebook Live to discuss backpacks. She also comments on parent’s purses and totes as the qualities in a bag are roughly the same! Read the clip to see what qualities to look for in a backpack or purse.