It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
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
Every human spent about half an hour as a single cell.
144
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
On average a woman has 4 sexual partners in her lifetime.
-143
We share 70% of our DNA with a slug.
218