Dumb Facts

Fingernails grow nearly 4 times faster than toenails!
One quarter of the bones in your body, are in your feet!
Your ribs move about 5 million times a year, every time you breathe!
On average, one heartbeat pumps five tablespoons of blood.
People use 200 muscles when they walk.
It wasn’t until 1543 that it was proven that a human heart was not the same as an ape’s and that a man did not have one more rib than a woman. Anatomy at this time was considered heresey.
There are more bacteria in your mouth than there are people in the world.
HIV, the virus which causes AIDS, can survive and remain infectious for up to four days in the lubricants of certain medical and dental devices.
The liver performs more than 500 different functions, including storing vitamins and removing harmful chemicals from the blood.
The DNA helix measures 80 billionths of an inch wide.
Your nose and ears never stop growing.
The average human brain weighs three pounds.
The digestive track in a person’s body is about 30 feet long.
Pain signals travel along hour nerves at 50 feet per second.
The fastest moving muscle in the human body is the one that opens and closes the eyelid.

Dumb Facts » Health and Medicine