Elizabeth Hurley has spoken from the heart about her "enormous sadness" over losing her grandmother to breast cancer.READ: Remembering Olivia Newton-John - Her family, Dolly Parton, Sir Cliff and more share emotional memoriesAs the Global Ambassador for The Estée Lauder Companies' Breast Cancer Campaign, the actress shared her expertise and knowledge with HELLO! for our Breast Cancer Awareness Month special. The mother-of-one revealed she is "so proud" of her campaigning efforts and hopes her grandmother would be too.Speaking openly about her own experiences with self-checking and mammograms, Elizabeth has an important message for women everywhere…Elizabeth: That my grandmother didn't talk about her diagnosis, is a source of enormous sadness to me – and I feel that if she'd been diagnosed today with what we know now, with the advances they've made in treatments, with diagnosis, with awareness, the way we talk about it, I feel it could just have been different for her.