The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
Within three days of death, the enzymes that once digested your food begin to eat you.
22
The human body contains over a billion miles of DNA.
147
The tongue is the strongest muscle in the human body.
50
The average person can live for eleven days without water, assuming an average temperature of 60 degrees fahrenheit.
15
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21