Topic > real life hero, saving a person's life. Matt, 22, became one after his football coach asked players to volunteer at Be The Match Drive and sign up for the registry in the spring of 2009. After two years of waiting, Matt got a call telling him it said he was a potential match for a patient in need of a peripheral blood stem cell donation. After further testing, Matt found it was the best fit for Ken, 42, who has a form of lymphoma. Matt helped save Ken's life just like so many other people have done through donations of bone marrow, peripheral blood stem cells and cord blood (Be The Match). Becoming a stem cell donor is easy and a great way to help others. Eligible people should donate stem cells because it helps save the lives of people with serious illnesses, there are three low-risk ways to donate and after donating people will receive the gift of knowing that perhaps they have helped save a life. When a person is diagnosed with a disease such as leukemia, lymphoma, or sickle cell disease, a bone marrow, peripheral blood, or cord blood transplant may be the most promising survival option (Be The Match). Cord blood transplants are used to treat a variety of blood disorders and some metabolic conditions (Shier, David 108). Blood diseases such as leukemia and lymphoma are usually treated with bone marrow transplants (BMT) or peripheral blood stem cell transplants (PBSCT) (Bone Marrow Transplant... par 7). There are approximately 20,000 bone marrow transplants (BMTs) performed each year in the United States to treat these disorders (Rubin par 1). Human leukocyte-associated antigens (HLA) are a set of proteins on the surface of a person's cells. These HLA antigens are used to match a patient's stem cells to their most compatible donor. The success of allogeneic transplantation depends on the proximity of the HLA antigens to the recipient's stem cells