A man's beard grows fastest when he anticipates sex.
239
You inhale about 700,000 of your own skin flakes each day.
29
Your tongue is the only muscle in your body that is attached at only one end.
173
The human sigh acts as a physiological reset button.
23
The chemicals indole and skatole, which help to account for the particular smell of human feces, are used as ingredients in perfume!
-3
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
By weight, Bone is five times stronger than steel.
417
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21