FACTS ABOUT THE BLOOD

THE BLOOD

1. There are 60,000 miles of blood vessels in the human body. That's enough to wrap around the world 2 1/2 times.
2. It takes about 20 seconds for a red blood cell to circle the whole body.
3. Every hour one billion cells in the body must be replaced.
4. Your body has enough iron in it to make a nail 3 inches long. Anyone who has ever tasted blood knows that it has a slightly metallic taste. This is due to the high levels of iron in the blood.
5. The most common blood type in the world is Type O.
6. A healthy person has 6,000 million hemoglobin molecules.
7. Your body is creating and killing 15 million red blood cells per second.

8.    Red blood cells live about 120 days in the circulatory system.

9.    Red blood cells carry oxygen to the body's organs and tissues.

10. Blood carries away from the body waste matter and carbon dioxide.

11. White cells are the body's primary defense against infection.

12. 4.5 million Americans will a need blood transfusion each year.

13. Two million red blood cells die every second.

14. There are approximately 100,000 miles of blood vessels in the human body.

15. Seven percent of a humans body weight is made up of blood.

16. In the early nineteenth century some advertisements claimed that riding the carousel was good for the circulation of blood.

17. Each day 400 gallons of recycled blood are pumped through the kidneys.

18. By donating just one pint of blood, four lives can be saved.

19. Blood is such a good stain that Native Americans used it for paint.

20. The kidneys filter over 400 gallons of blood each day.

21. The average life span of a single red blood cell is 120 days.

22. Blood accounts for about 8% of a human's body weight.

23.  A woman has approximately 4.5 liters of blood in her body, while men have 5.6 liters.

24. Your blood takes a very long trip through your body. If you could stretch out all of a human's blood vessels, they would be about 60,000 miles long. That's enough to go around the world twice.

25. Half your body’s red blood cells are replaced every seven days.

26.  Blood is about 78 percent water.