A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
We share 70% of our DNA with a slug.
218
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
The human sigh acts as a physiological reset button.
23
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13