20 Interesting Facts About Human Blood (Photos)

We all know that our blood system is really complicated, that’s why it’s important to take care of your heart and know your blood type. Unfortunately, many people don’t know about all the opportunities of our body.

Bright Side has collected interesting scientific facts about our blood that you probably don’t know.

1)It would take 1,120,000 mosquitoes to drain all the blood from an adult human.

2)To make blood circulate, the heart creates such pressure that it can release a 30-ft-high stream of blood.

3)A human being can live without a pulse. In 2012, doctors installed a device in 55-year-old Craig Lewis’ body that allows blood to circulate throughout his body without a pulse.


4)Stan Larkin lived 555 days without a heart, waiting to receive a transplant. His own heart was replaced with a device that Stain used to carry in his backpack. He could even play basketball.

5)The amount of blood that passes through the body in circulation in 25 days is approximately equal to a medium-sized swimming pool.

6)A person may lose 40% of their blood and still stay alive. Of course, a timely blood transfusion is needed.

7)21% of all heart attacks happen on Mondays. A second peak happens on Fridays. Scientists assume that the reason is an “outpouring” of stress hormones in the beginning of a week.

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