Now you Know
Humans shed and regrow outer skin cells about every 27 days.
Three hundred million cells die in the human body every minute.
Humans shed about 600,000 particles of skin every hour.
Every day an adult body produces 300 billion new cells.
Your body has enough iron in it to make a nail 3 inches long.
The most common blood type in the world is Type O.
Human lips have a reddish color because of the great concentration of tiny capillaries just below the skin.
The colder the room you sleep in, the better the chances are that you'll have a bad dream.
Tears and mucus contain an enzyme (lysozyme) that breaks down the cell wall of many bacteria.
Your body gives off enough heat in 30 minutes to bring half a gallon of water to a boil.
Your ears secrete more earwax when you are afraid than when you aren't.
It is not possible to tickle yourself.
The width of your armspan stretched out is the length of your whole body.
Humans are the only animals to produce emotional tears.
Right-handed people live, on average, nine years longer than left-handed people do.
Women burn fat more slowly than men, by a rate of about 50 calories a day.
Koalas and primates are the only animals with unique fingerprints.
The indentation in the middle of the area between the nose and the upper lip has a name.
Did you know that there are 206 bones in the adult human body and there are 300 in children (as they grow some of the bones fuse together).
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On October 15, 1794, the first silver dollar coins were released to be circulated to the public .. More >>