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
You can't tickle yourself.
29
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
The human eye blinks an average of 4,200,000 times a year.
233
Obsessive nose picking is called Rhinotillexomania.
101
Tigers can see 6 times better at night than humans.
305
Enamel is hardest substance in the human body.
61
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26