The world's shortest man measures only 21.5 inches.
73
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Pain occurs when sounds are above 130 db.
124
In one day, adult lungs move about 10,000 litres of air.
11
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
A man's beard grows fastest when he anticipates sex.
239