Human Organs

90 Amazing and Unknown Facts about Human Organs  | Amazing Facts 4U

1. The amazing fact is that while only 2% in weight, the human brain requires 15% of the body’s heart work, 20% of oxygen, and 25% of all glucose.
2. The longest living cells in the body are the brain cells which can live amazingly for an entire lifetime.
3. Brain surgery can amazingly be done with the patient awake since the brain has no nerve fibers for pain.
4. While we are awake, our brain generates enough power to illuminate a light bulb of 25 watts.
5. The cornea has no blood supply. It takes in oxygen directly from the air.
6. While reading as you focus on each word, your eyes swing back and forth 100 times a second and every second retina performs amazing & mind-boggling 10 billion computer-like calculations.
7. You will require walking 80 km for your legs to equal the amount of exercise your eyes get daily.
8. We weblink our eyes once every six-second i.e. 250 million times in a lifetime.
9. One-quarter of the human brain is used to control the eyes.
10. If you go blind in one eye, you only lose about one-fifth of your vision, but all your sense of depth.
11. The farthest you can see with the naked eye is the giant Andromeda Galaxy which is an amazing 2.4 million light-years away!
12. An eyebrow typically contains 500 hairs.
13. An eyelash lives about 5 months.
14. People with blue eyes see better in dark.
15. The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
16. Amazingly a sneeze can exceed the speed of 100 mph.
17. When you sneeze, all your bodily functions stop, even your heart.
18. If you try to suppress a sneeze, you can rupture a blood vessel in your head or neck and die.
19. If you keep your eyes open by force when you sneeze, you might pop an eyeball out.
20. Your nose can remember 50,000 different scents though this is much inferior to many animals..
21. The average person grows up to 6 feet of nose hair.
22. Amazingly the tooth is the only part of the human body that can’t repair itself.
23. Relative to size the strongest muscle in the body is the tongue.
24. The tongue is the only body muscle that is attached from one end only.
25. Your tongue is relatively germ-free only if it is pink. If white, there is a thin film of bacteria on it.
26.  It takes seventeen muscles to smile and amazingly forty-three to frown. Keep smiling.
27. During a kiss as many as 278 bacteria, colonies are exchanged.
28. Lips are 100 times more sensitive than the fingertips.
29. Amazingly women end up digesting most of the lipstick they apply.
30. The smallest bone staples ( 2.8 mm) are located in the middle ear.
31. Sense of smell is around 10000 times more sensitive than your sense of taste.
32. When a person dies, hearing is the last sense to go. First off would be your sight.
33. The ear in the human body has amazingly over 25,000 tiny hair cells to help us hear each and every sound!
34. The only jointless bone in your body is the hyoid bone in your throat.
35. Blood is 6 times thicker than water.
36. The amazing fact is that you have enough red blood cells in your body to circle the planet 2.5 times.
37. Human blood travels 60,000 miles per day on its journey through the circulatory system.
38. There are 62,000 miles of blood vessels in the human body enough to circle the earth 2.5 times.
39. Human being has about 37000 miles of capillaries.
40. Each red blood cell lives about 4 months and travels amazingly between the lungs and other tissues 75,000 times before returning to the bone marrow to die.
41. Your body is creating and killing amazing 15 million red blood cells per second.
42. Your heart is about the same size as your fist.
43. The human heart pumps at a pressure sufficient to squirt blood up to 30 feet.
44. Your heart rate can rise as much as 30% during a yawn.
45. When committing suicide while jumping off a high building, most of the time you have a heart attack and die before hitting the ground.
46. The total surface area of a pair of human lungs is equal to that of a tennis court.
47. You breathe mostly from only one nostril at a time!
48. A cough releases an explosive charge of air that moves at speeds up to 60 mph.
49. Locked in a completely sealed room, it’s amazing that you die of carbon dioxide poisoning first before you die of oxygen deprivation.
50. You can’t kill yourself by holding your breath.
51. You inhale about 700,000 of your own skin flakes each day which are being continuously shredded.
52. 1.7 liters of saliva is produced each day.
53. The fact is human beings can’t smell or taste a substance that is not soluble. On a dry tongue, sugar has no taste.
54. The average life span of a taste bud is 10 days.
55. A person swallows approximately 300 times while eating dinner.
56. The amazing fact is during your lifetime, you will produce enough saliva to fill two swimming pools.
57. By age sixty, most people have lost half of their taste buds.
58. The acid in your stomach is amazingly strong enough to dissolve razor blades.
59. Your stomach produces a new layer of mucus every two weeks so that it doesn’t digest itself.
60. Food passes through the small intestine in just two hours. Inside the large intestine, it takes about 14 hours in spite of 10 times smaller length.
61. The average adult produces about half a liter of flatulent gas every day.
62. On average a person passes gas 14 times a day
63. The human liver amazingly performs over 500 different functions.
64. The kidneys filter about 500 gallons of blood each day.
65. The total length of little tubes in both the kidneys is amazing 40 miles.
66. Every drop of blood is filtered by kidneys over 300 times a day.
67. It’s amazing that males produce 1000 sperm cells every second i.e. 86 million each day. If all cells fertilize, it can produce a world population in just 3 months.
68. A fingernail or toenail takes about 6 months to grow from base to tip.
69. Fingernails grow four times faster than toenails.
70. Our fingers don’t have any muscles. The muscles which move our finger joints are located in the palm and up in the forearm.
71. The amazing fact is that the tips of your fingers have enough strength to support the weight of your whole body.
72. The human feet have 500,000 sweat glands and can produce more than a pint of sweat every day.
73. Skin is the largest organ of the human body weighing 3.2 kg.
74. The average adult has about 3,500 square inches of skin. The skin itself has roughly a billion pores or openings.
75. A square inch of skin holds 650 sweat glands, 20 blood vessels, 60,000 pigment cells.
76. Skin is thickest, 1/5 inch, on the upper back. It is thinnest on the eyelids, which is only 1/50th inch thick.
77. The attachment of the human skin to muscles is what causes dimples.
78. There are more living organisms on the skin of a single human being than the World population.
79. It’s amazing that about 32 million bacteria call every inch of your skin home but the majority of these are entirely harmless.
80. Perspiration is odorless; it is the bacteria on the skin that creates an odor.
81. About 15% of Caucasians have skin that never tans; it only burns.
82. Most of the dust in your home is actually dead skin.
83. An average human head has 100,000 hairs and 40 to 100 hairs are lost daily.
84. Humans have about 5 million hairs on the whole body.
85. Only Asian people have black hair. Every other supposedly ‘black’ hair color is actually really dark brown.
86. You must lose over 50% of your scalp hairs before it is apparent to anyone.
87. Human hair is virtually indestructible. Aside from it’s flammability, human hair decays at such a slow rate that it is practically non-disintegrative.
88. One human hair can support 3 Ounces of weight.
89. Women’s hair is about half the diameter of Men’s hair.
90. The amazing fact is that during his or her lifetime, the average human will grow 590 miles of hair.

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~ By Amazing Facts 4U Team

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