Within three days of death, the enzymes that once digested your food begin to eat you.
22
The human sigh acts as a physiological reset button.
23
Your body is creating and killing about 2.4 million red blood cells per second.
17
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
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.
22
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 body contains over a billion miles of DNA.
147