The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Within three days of death, the enzymes that once digested your food begin to eat you.
22
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
Your thumb is about the same size as your nose.
124
One human hair can support 3 ounces.
191
The human sigh acts as a physiological reset button.
23
In 1996, research found that having excessive body hair is linked to higher intelligence.
23