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Blood donors in Sweden receive a thank you text when their blood is used.
Toucans manage their body temperature by adjusting the blood flow to their beak as more blood means more heat release. Due to this, the creatures sleep on their beak to conserve heat.
There are 60,000 miles of blood vessels in the human body.
There are 5 temples in Kyoto, Japan that have blood stained ceilings. The ceilings are made from the floorboards of a castle where warriors killed themselves after a long hold-off against an army. To this day, you can still see the outlines and footprints.
If you try to suppress a sneeze, you can rupture a blood vessel in your head or neck and die.
Coconut water can be used as blood plasma.
Only female mosquitoes drink blood. Males are vegetarians.
HP Printer black ink is more expensive than blood.
Besides sucking our blood, mosquitoes urinate on our skin.
It would take 1,200,000 mosquitoes, each sucking once, to completely drain the average human of blood.
There are 100,000 miles of blood vessels in an adult human body.
James Harrison has donated blood over 1,000 times saving over 2 million unborn babies from Rhesus disease.
Our bodies contain about 0.2 milligrams of gold, most of it in our blood.
Drinking a cup of caffeinated coffee significantly improves blood flow.
In the 70s and 80s, Bayer sold blood products contaminated with HIV and Hepatitis C which caused up to 10,000 people in the U.S. alone to contract HIV.
People who take “siestas” often are more likely to have high blood pressure and high cholesterol.
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
Dogs have 13 blood types, horses have 8, cows have 9 while Humans only have 4.
8% of your body weight is in your blood.
There is a waterfall in Antarctica that runs red as blood.