It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
There's 100 trillion good bacteria living in your body.
17
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
The human sigh acts as a physiological reset button.
23
A person can live without food for about a month, but only about a week without water.
156
You see your nose at all times, your brain just chooses to ignore it.
30