The average human body contains enough iron to make a small nail.
50
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
It takes approximately 12 hours for food to entirely digest.
93
Panophobia is the fear of everything.
52
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Your ears secrete more earwax when you are afraid than when you aren't.
229
The right lung takes in more air than the left.
30