The human brain doesn't stop developing until about 25 years old.
102
The average person will go on a date at least 100 times before they finally marry.
33
You can't tickle yourself.
29
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Early American humans hunted car-size armadillos and used their shells for houses.
12
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89