A man's beard grows fastest when he anticipates sex.
239
The tongue is the strongest muscle in the human body.
50
On average, there's 100 billion neurons in the human brain.
83
If you unfolded your brain, it would cover an ironing board.
42
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
If you cut a 'V' shape into your toe nails, you can prevent 'in-grown' toe nails.
22
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Your body is creating and killing about 2.4 million red blood cells per second.
17