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
Obsessive nose picking is called Rhinotillexomania.
101
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
It takes approximately 12 hours for food to entirely digest.
93
Yawns are more contagious among people with closer relationships.
163
In one day, adult lungs move about 10,000 litres of air.
11
On average a woman has 4 sexual partners in her lifetime.
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