With breast cancer awareness and advances in treatments being in the news lately the Australian National Breast Cancer Centre has a new tool on its website. It is a tool which lets you calculate your level of risk for breast cancer. All it requires are a few answers on your family history, height and weight. Many of you might wonder what a "stone" is - well …. 14 pounds are one stone. But you needn't do the conversion – just put all your pounds in the pound box.