For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Our Right Lungs takes more air than our left lung.
194
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Your thumb is about the same size as your nose.
124
The human body contains over a billion miles of DNA.
147
The average sperm cell swims at 8 inches per hour.
76
The average person's skin weighs twice as much as their brain.
131