On average, there's 100 billion neurons in the human brain.
83
Pain occurs when sounds are above 130 db.
123
One human hair can support 3 ounces.
191
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
It takes about 20 seconds for a red blood cell to circle the whole body.
102
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
We share 70% of our DNA with a slug.
218