On average a woman has 4 sexual partners in her lifetime.
-143
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In one day, adult lungs move about 10,000 litres of air.
11
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15