An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
A man's beard grows fastest when he anticipates sex.
239
The human brain doesn't stop developing until about 25 years old.
102
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The human body contains over a billion miles of DNA.
147
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
Your fingernails grow faster in summer.
744
Mushrooms are more closely related to humans than they are to plants.
47