The Leukemia & Lymphoma Society (LLS) is the largest nonprofit organization dedicated to creating a world without blood cancers. Since 1949, they've invested more than $1.2 billion in groundbreaking research, pioneering many of today's most innovative approaches. LLS works tirelessly to find cures and ensure patients can access the lifesaving treatments they need. When someone experiences the fear and uncertainty of a cancer diagnosis, LLS provides hope, compassion, education and support. And they are making an impact in the cancer community. Many treatments funded by LLS are now helping patients with other cancers and serious diseases. More than 65 years of fighting blood cancers has led LLS to a game changing belief: the cures for cancer are in our blood.

Sienna wasn't fully recovered from her procedure when her stem cells were ready for Ethan. Skyping from their separate hospital rooms, Sienna proclaimed, "This is the best day of my life, because I got to save my big brother's life." Ethan and Sienna call themselves the "Super Sibs". They now share the same stem cells and a bond unlike any other.