It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25
You would need to smoke between 20,000-40,000 joints to be at risk of dying of a THC overdose.
12
You inhale about 700,000 of your own skin flakes each day.
29
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
In Japan, condoms are commonly sold 'door to door'!
54