The largest cell in the human body is the female egg and the smallest is the male sperm.
682
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
One human hair can support 3 ounces.
191
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
94
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111