Australian James Harrison is known as the man with the "golden arm” and that’s not only because he’s given blood more than 1,100 times, but because of why he gives. James’ blood contains an antibody used to make a medication called Anti-D, which is given to mothers with a negative blood type. It prevents hemolytic disease of the newborn (HDN), which can result in anemia, heart failure, and even death in newborn babies. Back in 2018, James completed his last donation and said it was a sad day. He would have kept on giving, but Australia's Red Cross Blood Service only allows donors to keep giving until their 81st birthday. Even though James Harrison has retired from giving, he will long be known as the man with the golden arm who saved millions.