A man's beard grows fastest when he anticipates sex.
239
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
You can't tickle yourself.
29
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
Enamel is hardest substance in the human body.
61
Early American humans hunted car-size armadillos and used their shells for houses.
12
The human eye blinks an average of 4,200,000 times a year.
233