In one day, adult lungs move about 10,000 litres of air.
11
Common pesticides such as roach, termite, and flea insecticide can be found in the bodies of the majority of Americans.
11
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
You see your nose at all times, your brain just chooses to ignore it.
30
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18