Volunteers donate virtually all of this country's supply of blood for transfusion. Most people donate at a drive where they work. Generally speaking, anyone who is at least 17 years old, weighs at least 110 pounds and is in good health is eligible. There is no upper age limit. Because patients need it to stay alive.
People are the only source.
The blood center does its part by asking you to donate, collecting, processing and delivering your blood to the hospitals around the clock. At least 580 blood donors are needed every day to take care of patients in local hospitals. The only way this enormous need can be met is by turning to the entire community. I gave once this year. Blood is a living tissue and it dies if separated from the body.