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
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
One human hair can support 3 ounces.
191
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
160
It takes approximately 12 hours for food to entirely digest.
93
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23