There are about 1,400 different species of bacteria in your belly button.
10
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Held in farts enter your bloodstream and are bad for your body.
26
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
The human brain doesn't stop developing until about 25 years old.
102
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.
22
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22