Dan Graustein has been donating blood since the 1970s. “It’s the most important thing that I do because it has potential of saving somebody’s life,” he said. “In 1974, there’s a blood competition between Michigan and Ohio State, same week that the football game is, and they compete on who can donate more blood,” he said. He said that in the past, the American Red Cross would donate your blood to one individual person. “I have donated white blood cells, plasma platelets,” he said.