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
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
The human sigh acts as a physiological reset button.
23
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
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
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
You see your nose at all times, your brain just chooses to ignore it.
30