A pumping human heart can squirt blood as far as 30 feet.
You can lose up to a third of your blood and still survive.
The jugular is an artery, not a vein.
The human body has about 60,000 miles of blood vessels.
In the time it takes to turn a page, you lose 3 million blood cells and make 3 million more.
Red blood cells live four months. In this time, they make 75,000 trips to the lungs and back.
The most nutritious “”food”” in the world is blood.
Identical twins always have the same blood type.
