Enamel is hardest substance in the human body.
61
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
The human eye blinks an average of 4,200,000 times a year.
233
All 13 minerals necessary for human life can be found in alcohol beverages.
282
On average, there's 100 billion neurons in the human brain.
83
Pain occurs when sounds are above 130 db.
124
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198