Blood is very important to all of us, but most of us know
very little about it. Most of us probably don’t even know
what type we are. Due to its importance in the bodies of
both humans and animals, it is no wonder why it is so
intricately made up. Below are some interesting facts that
you probably didn’t know about one of the most important
things in your life.

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#1.Its weight.

About 7% of your overall body weight comes from blood.
Also, there are approximately ten pints of blood in every
body of an average adult. So when you donate a pint of
blood, you are giving away roughly 10% of your overall
blood supply.

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#2.Causes noses to run.

When your nose runs it is due to your blood’s attempt to
keep your nose warm. This attempt creates a need for the
blood vessels in your nose to dilate, which in turn causes
them to create more mucus.

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#3.It is sold and bought.

When you donate blood, that blood is actually being sold
around the country. This industry is a multi-billion dollar
industry; one that is tapped into every couple of seconds for
someone in need.

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#4. Mosquitos love it.

Mosquitos prefer type O blood to the rest, but aren’t picky in
a pinch and only the female mosquitos drink it. It would take
over a million of them simultaneously sucking in order to
drain a human of all their blood.

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#5.It can fill a train.

Over the course of your lifetime, your heart will pump
enough blood to fill two hundred entire train cars full of
blood. This is equivalent to approximately one and a half
million barrels of blood that is produced from one person.

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#6.Red blood cells flow smoothly.

Red blood cells are created differently than the other cells of
the body. They contain no nuclei and are therefore able to
travel through the body easily. They circulate for around 120
days before they die off and are replaced by the bone
marrow in the body.

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#7.The bigger you are…the slower your blood.

Larger animals have slower heart rates than smaller
animals. This means that the blood in their body takes
longer to circulate around. For example, a blue whale’s
heart only beats 5 times per minute while humans beat
closer to 75 per minute.

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#8.Not all blood is red.

Some animals, like crabs have blue blood. Others have been
found to have green, clear or yellow blood. This is mainly
due to the elements that the animals use to make the blood.
However, there are a very small number of animals that
have this trait, most blood is red.

I've learnt something today

Nice info

Good!