The human eye blinks an average of 4,200,000 times a year.
233
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Mushrooms are more closely related to humans than they are to plants.
47
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
In one day, adult lungs move about 10,000 litres of air.
11
Your heart will pump about 212 million liters in its lifetime.
26
The human body contains over a billion miles of DNA.
147
If the human eye was a digital camera, it would have 576 megapixels.
25