SPC Christian Sutton, also known as the bone marrow guy, discusses his work in promoting bone marrow donation within the Army. He explains the importance of the bone marrow registry and how it helps individuals with cancer or blood disorders find a match for a life-saving donation. SPC Sutton shares his journey of getting involved in the bone marrow registry and the challenges he faced in establishing a sustainable program within the Army. He emphasizes the need for education and awareness about bone marrow donation and hopes to make the Army the largest source of bone marrow donors in the United States.