At 20, Brooke Smith had the life she wanted: beauty, boyfriends, a blossoming career styling hair and a bruising hobby as a star on her women's roller derby team. By 21, she'd been diagnosed with a rare, incurable form of cancer: alveolar soft part sarcoma. Her doctors told her it may not take its final toll for 10 to 15 years. Share your thoughts on this story here.