On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The human body contains over a billion miles of DNA.
147
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Your heart will pump about 212 million liters in its lifetime.
26
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29