One pint of donated blood can save up to three lives.
The blood you donate is sold on the open market and it’s a US$4.5 billion per year industry.
Someone needs blood every two seconds.
A newborn baby has about one cup of blood in his body.
It would take 1,200,000 mosquitoes, each sucking once, to completely drain the average human of blood.
Only female mosquitoes suck blood. Males are vegetarians.
There are 100,000 miles of blood vessels in an adult human body.
Your heart will pump nearly 1.5 million barrels of blood during your lifetime, enough to fill 200 train tank cars.
Pregnant women have about 50% more blood by week 20 of pregnancy than they did before they conceived.
A red blood cell can make a com plete circuit of your body in30 seconds.
Coconut water can be used (in emergencies) as a substitute for blood plasma.
Our bodies contain about 0.2 milligrams of gold, most of it in our blood.