A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The average sperm cell swims at 8 inches per hour.
4
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
In one day, adult lungs move about 10,000 litres of air.
11
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
A man's beard grows fastest when he anticipates sex.
239