The Red Cross says the need for donations has never been greater as the U.S. faces an ongoing shortage in its blood supply. National Blood Donor month can help.

The blood is oxygenated there and then carried back to the heart ... the term that describes what happens when your heart's blood supply is blocked or interrupted. Coronary heart disease is ...

is facing a critical blood supply shortage. The shortage is due to a combination of factors, including a severe cold and flu season and winter weather that led to blood drive cancellations.