Every human spent about half an hour as a single cell.
144
Enamel is hardest substance in the human body.
61
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The human sigh acts as a physiological reset button.
23
The world's shortest man measures only 21.5 inches.
73
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
All 13 minerals necessary for human life can be found in alcohol beverages.
282
Your thumb is about the same size as your nose.
124