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. | added by Richard |
When you sleep, you grow by about 8mm (0.3in). The next day you shrink back to your former height. The reason is that your cartilage discs are squeezed like sponges by the force of gravity when you stand or sit. | added by Abigail |
Intelligent people have more zinc and copper in their hair | added by Erica |
Human blood travels 60,000 miles (96,540 km) per day on its journey through the body | added by Danny |
Every year about 98% of the atoms in your body are replaced | added by Martha |
Human thigh bones are stronger than concrete | added by Doug |
The human body is comprised of 80% water | added by Smokey |
Women blink nearly twice as much as men | added by Elizabeth |
Your body uses 300 muscles to balance itself when you are standing still | added by Doug |