Do you ever give blood? According to the Red Cross, every two seconds there’s an American in need of it, requiring roughly 41,000 donations per day. In the U.S., more than 100 million people are eligible to donate, although only about 9 million do so every year (1). Blood donations help people cope with diseases like sickle cell (affecting more than 90,000 people in the U.S.), and cancer (affecting 14 million (2)), which require frequent blood transfusions. Hospitals also need a continuous supply of fresh blood for surgical patients, laboring mothers, and trauma cases (1,3).