If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The human sigh acts as a physiological reset button.
23
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In 1996, research found that having excessive body hair is linked to higher intelligence.
23

