Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
On average a woman has 4 sexual partners in her lifetime.
-143
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
All 13 minerals necessary for human life can be found in alcohol beverages.
282
The human brain uses approximately as much energy as a 10 watt light bulb.
120
You can't tickle yourself.
29
On average, there's 100 billion neurons in the human brain.
83