Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Your body is creating and killing about 2.4 million red blood cells per second.
17
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
Held in farts enter your bloodstream and are bad for your body.
26
In one day, adult lungs move about 10,000 litres of air.
11