Blood donation: the facts of the matter

Thursday 12th June

With World Blood Donor Day on June 14, there’s been an increase in focus on the importance of blood and blood donation – but how much do you know about blood? Here are 15 interesting facts on that life-giving substance.

1. Someone needs blood every two seconds.

2. There are 60,000 miles of blood vessels in the human body.

3. An average adult has between 4.7 and 5.0 Litres of blood in their body.

4. Around one in every seven people entering a hospital needs blood.

5. World Blood Donor Day is June 14, because that was the birthday of Karl Landsteiner, who discovered the human blood groups.

6. Our blood makes up around seven percent of our overall body weight.

7. O negative blood can be safely given to anyone, meaning it’s often the most requested by hospitals.

8. There is usually less than a week's supply of blood in the UK's blood banks at any one time.

9. Donors must wait 56 days between red blood cell donations.

10. A single car accident victim can require as many as 100 units of blood.

11. Over 8000 units of blood are collected at golf clubs each year

12. Donated Red blood cells must be used within 42 days.

13. Donated Platelets must be used within five days.

14. Around one in four of us will need blood at some point in our lives.

15. One single donation can save the lives of up to three people.