Sex burns about 360 calories per hour.
860
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
2 out of 3 adults in the United States have hemorrhoids.
7
25% of your bones are located in your feet.
12
The average office desk has 400 times more bacteria than a toilet.
22
Chewing gum boosts your brain power.
285
About 400 different kinds of microbes live on and in the human body.
-3
The right lung takes in more air than the left.
30