Human hair and fingernails continue to grow after death.
7
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Your heart will pump about 212 million liters in its lifetime.
26
Your fingernails grow faster in summer.
744
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The world's shortest man measures only 21.5 inches.
73