It takes 17 muscles to smile, 43 to frown.
65
We blink 25 times a minute.
51
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Within three days of death, the enzymes that once digested your food begin to eat you.
22
The average human body contains enough iron to make a small nail.
50
Wearing tight pants can lead to impotence in men.
120
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
In 1996, research found that having excessive body hair is linked to higher intelligence.
23