Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
There are about 1,400 different species of bacteria in your belly button.
10
The average sperm cell swims at 8 inches per hour.
76
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
The average person's skin weighs twice as much as their brain.
131
Your heart will pump about 212 million liters in its lifetime.
26
Held in farts enter your bloodstream and are bad for your body.
26
