Intelligent people have more zinc and copper in their hair.
233
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
-86
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
The average person falls asleep in seven minutes.
115
The world's shortest man measures only 21.5 inches.
73
‘Old people smell’ is actually caused by a chemical, 2-nonenal, that old people secrete through their skin
8
Every human spent about half an hour as a single cell.
144