For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
The human body contains over a billion miles of DNA.
147
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
One human hair can support 3 ounces.
191
Your thumb is about the same size as your nose.
124
When you take a step, you are using up to 200 muscles.
886
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18