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
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
A human being loses an average of 40 to 100 strands of hair a day.
133
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Our Right Lungs takes more air than our left lung.
194
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The average sperm cell swims at 8 inches per hour.
76