Today the big handbags are a key fashion accessory for working women, and not only. That's why health experts are warning they can also be a reason of neck, shoulder and back problems. Bags for women have become bigger and heavier as designers combine briefcases with handbags and straps have become longer. "We take it over to the scale and weigh it and usually they're anywhere from 3-4.5 kgsWe're really going to see women with more and more problems later on if we continue the big purse craze" said Jane Sadler, a family practice physician on the medical staff at Baylor Medical