Blood donations are needed every day of the year to have enough blood to supply to those in need of transfusions. More than 500 blood donations are needed daily to save patient lives. Being a blood donor helps to sustain lives all around the world. Heartland Blood Centers provides blood to hospitals not only within the greater Chicago land area but across the nation. The average adult body stores a little more than a pint of blood to every 25 pounds. The entire process for donating 1 pint of whole blood only takes about 45 minutes. Please consider saving a life today!