Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Only 1% of bacteria cause disease.
45
About 400 different kinds of microbes live on and in the human body.
-3
From the age of thirty, humans gradually begin to shrink in size.
1
The human brain is more active during sleep than during the day.
28
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202
About half of all Americans are on a diet on any given day.
29