 This is Mark Anthony. Did you know that every three seconds someone needs blood? Or that each year more than 4 million Americans need blood transfusions? Just one blood donation from you saves up to three lives? It's easy. And size, shape, and color don't make a difference to those who receive it. Become a blood donor. For more information, call the American Association of Blood Banks at 1-866-FROM-YOU. That's 1-866-376-6968.