Nearly half the active blood donors in the Anglia region are over 45 years old and the NHS Blood and Transplant service want to encourage young donors to come forward.
Seven out of ten 16-21-year-olds say they want to know more about the blood donation process before deciding to go ahead.
Here are some facts about giving blood:
- Blood is not just used in A&E - it's used to treat a wide variety of illnesses, including many types of cancers such as leukaemia
- Hospitals need 7,000 units of blood every day
- Every unit of blood you donate saves or improves the lives of up to three people
- Over a lifetime some blood donors help more than 500 people
- The most common blood type is O+
- The rarest blood type is AB-
- 200,000 new donors are needed each year to keep donor levels stable