DIDYANOSE:
A baby in the womb has unique finger prints at 3 months old.
The average head has 100,000 hairs on it, and each little hair has it's own muscle that can make it stand up if you get scared.
If you stretched out all your blood vessels you'd have enough to circle around the earth 2 times.
You have 46 miles of nerves.
If you're right handed your right lung is bigger that your left and your fingermails on your right hand grow faster.
Your brain is 74% water. Don't feel bad. So was Einstein's.
Every minute 300 million cells die in the human body.
A woman's heart beats faster than a man's.
Your stomach gets a new lining every three days. If it didn't the hydrochloric acid of your digestive system would go crazy, and your stomach would eat itself alive in 2 weeks.
We have 2 million sweat glands.
We produce 25,000 quarts of spit in a liftime. That's enough to fill about 2 swimming pools (that I would never swim in).
Your nose makes a liter of snot every day. If it didn't, you'd be constantly sick from the dirt, pollen, mold, and germs that would get in.
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