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11 Things You Didn't Know About Your Blood

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1. A newborn baby has about one cup of blood in their body.

2. The most common blood type in Canada is O (Rh Positive).

3. It's not actually the bloodletting of leech therapy that benefits a human...

...but rather the transfer of an enzyme they produce, which acts as an anticoagulation agent.
Oakley Originals / CC BY http://2.0 / Via Flickr: oakleyoriginals

...but rather the transfer of an enzyme they produce, which acts as an anticoagulation agent.

4. The heart is capable of squirting blood about three feet high.

5. Women's hearts beat faster than men's.

6. There are 2.4 trillion blood cells in one pint of blood.

7. Plasma is 90% water.

8. Blood makes up 7% of your body weight.

9. The shelf life of red blood cells is just 42 days.

10. Blood is not actually blue when it's in the body.

11. A human has 600,000 miles of blood vessels.

Up to 5 units of donated blood may be needed to help one cancer patient.

Sign up for e-news with Canadian Blood Services to learn more about donating!
Via thinkstockphotos.com

Sign up for e-news with Canadian Blood Services to learn more about donating!