Sam and Alex are two sisters with a mission of making sure no one goes without a bone marrow donor. When Sam was seventeen years old, she was diagnosed with rare blood disorder aplastic anemia. The only treatment option at the time was a bone marrow transplant, so her sister, best friend, and herself hopped in a van to drive around the country searching for possible donors, not only for herself, but other patients on the waiting list. They were honored as the Global Genes 2016 Champions of Hope - Advocacy for their work. Visit their site and get involved here.