Blood is a constantly circulating fluid providing the body with nutrition, oxygen, and waste removal. Blood is mostly liquid, with numerous cells and ...
Register to be a blood donor, give blood and save lives. Find out more about blood donation.
The Need is Constant. Every two seconds someone in the U.S. needs blood. Roll up a sleeve and help replenish the blood supply.
Provides information on blood, becoming a donor, getting involved, news and events.