Complex sentence: She became a spokesperson for BreastScreen Australia and urged women over 50 to have regular mammograms to discover breast cancer, but in 2000 she ironically discovered that she had breast cancer herself.
Split into simpler sentences: She became a spokesperson for BreastScreen Australia and urged women over 50 to have regular mammograms to discover breast cancer. Sadly in 2000 she discovered that she had breast cancer herself.