There is a family with a genetic condition that makes their skin blue, who have been isolated in rural Kentucky for generations.
34
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Water is actually naturally blue.
48
People with light eye colors (like blue, green or grey) have a higher alcohol tolerance.
194
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