After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
About 400 different kinds of microbes live on and in the human body.
-3
You can alleviate a tickly throat by scratching your ear.
9
The whiter your tongue, the more germs there are on it.
88
In one day, adult lungs move about 10,000 litres of air.
11
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Midgets and dwarfs almost always have normal sized children.
54