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9. Fact
The brain itself cannot feel pain.

10. Fact
80% of the brain is water.

11. Fact
Facial hair grows faster than any other hair on the body.

12. Fact
Every day the average person loses 60-100 strands of hair.

13. Fact
Women's hair is about half the diameter of men's hair.

14. Fact
One human hair can support 3.5 ounces.

15. Fact
The fastest growing nail is on the middle finger.

16. Fact
There are as many hairs per square inch on your body as a chimpanzee.

17. Fact
Blondes have more hair.

18. Fact
Fingernails grow nearly 4 times faster than toenails.

19. Fact
The lifespan of a human hair is 3 to 7 years on average.

20. Fact
You must lose over 50% of your scalp hairs before it is apparent to anyone.

21. Fact
Human hair is virtually indestructible.

22. Fact
The largest internal organ is the small intestine.

23. Fact
The human heart creates enough pressure to squirt blood 30 feet.

24. Fact
The acid in your stomach is strong enough to dissolve razorblades.

25. Fact
The human body is estimated to have 60,000 miles of blood vessels.

26. Fact
You get a new stomach lining every three to four days.

27. Fact
The surface area of a human lung is equal to a tennis court.

28. Fact
Women's hearts beat faster than men's.

29. Fact
Scientists have counted over 500 different liver functions.

30. Fact
The aorta is nearly the diameter of a garden hose.

31. Fact
Your left lung is smaller than your right lung to make room for your heart.

32. Fact
You could remove a large part of your internal organs and survive.

33. Fact
The adrenal glands change size throughout life.

34. Fact
Sneezes regularly exceed 100 mph.

35. Fact
Coughs clock in at about 60 mph.

36. Fact
Women blink twice as many times as men do.

37. Fact
A full bladder is roughly the size of a soft ball.

38. Fact
Approximately 75% of human waste is made of water.

39. Fact
Feet have 500,000 sweat glands and can produce more than a pint of sweat a day.

40. Fact
During your lifetime, you will produce enough saliva to fill two swimming pools.

41. Fact
The average person expels flatulence 14 times each day.

42. Fact
Earwax production is necessary for good ear health.

43. Fact
The largest cell in the human body is the female egg and the smallest is the male sperm.

44. Fact
The three things pregnant women dream most of during their first trimester are frogs, worms and potted plants.

45. Fact
Your teeth start growing 6 months before you are born.

46. Fact
Babies are always born with blue eyes.

47. Fact
Babies are, pound for pound, stronger than an ox.

48. Fact
One out of every 2,000 newborn infants has a tooth when they are born.

49. Fact
A fetus acquires fingerprints at the age of three months.

50. Fact
Every human spent about half an hour as a single cell.

51. Fact
Most men have erections every hour to hour and a half during sleep.

52. Fact
After eating too much, your hearing is less sharp.

53. Fact
About one third of the human race has 20-20 vision.

54. Fact
If saliva cannot dissolve something, you cannot taste it.

55. Fact
Women are born better smellers than men and remain better smellers over life.

56. Fact
Your nose can remember 50,000 different scents.

57. Fact
Even small noises cause the pupils of the eyes to dilate.

58. Fact
Everyone has a unique smell, except for identical twins.

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