You have no sense of smell when you're sleeping!
72
If you are bitten by a poisonous snake, and fail to receive medical attention, you still have a 50% chance of survival.
28
About 400 different kinds of microbes live on and in the human body.
-3
Your body is creating and killing 15 million red blood cells per second.
50
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The male fetus is capable of attaining an erection during the last trimester.
75
You mostly breathe from only one nostril at a time!
75
A human being loses an average of 40 to 100 strands of hair a day.
133