The average sperm cell swims at 8 inches per hour.
4
You can't tickle yourself.
29
A person can live without food for about a month, but only about a week without water.
156
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Gorillas can catch human colds and other illnesses.
205
In one day, adult lungs move about 10,000 litres of air.
11
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456