120 Amazing Medical Facts of the Body

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1. The average red blood cell lives for 120 days.
2.Nerve Impulses travel at over 400 km/hr (249 mi/hr).
3. Considering all the tissues and cells in your body, 25 million new cells are being produced each second. That’s a little less than the population of Canada – every second !
4. There are 2.5 trillion (give or take) of red blood cells in your body at any moment. To maintain this number, about two and a half million new ones need to be produced every second by your bone marrow.That’s like a new population of the city of Toronto every second.
5. Our heart beats around 100,00 times every day or about 30 million times in a year.
6. The human body has less muscles in it than a caterpillar.
7. A red blood cell can circumnavigate your body in under 20 seconds.
8. Our blood is on a 60,000-mile journey per day.
9. Our lungs inhale over two million litres of air every day, without even thinking. Their surface area is large enough to cover one side of a tennis court.
10. When we touch something, we send a message to our brain at 124 mph
11. A sneeze generates a wind of 166 km/hr (100 mi/hr), and a cough moves out at 100 km/hr (60 mi/hr).
12. Our eyes can distinguish up to ten million colour surfaces and take in more information than the largest telescope known to man.
13. We give birth to over 200 billion red cells every day.
14. We have copper, zinc, cobalt, calcium, manganese, phosphates, nickel and silicon in our bodies.
15. We exercise at least 36 muscles when we smile.
16. We are about 70 percent water.
17. A person can expect to breathe in about 45 pounds of dust over his/her lifetime.
18. We make around 1 to 1.6 litres of saliva a day.
19. In one square inch of our hand we have nine feet of blood vessels, 600 pain sensors, 9000 nerve endings, 36 heat sensors and 75 pressure sensors.
20. It is believed that the main purpose of eyebrows is to keep sweat out of the eyes.
21. From the age of thirty, humans gradually begin to shrink in size.
22. When you blush, your stomach lining also reddens.
23. The human body has 230 movable and semi- movable joints
24. The amount of carbon in the human body is enough to fill about 9,000 ‘lead’ pencils.
25. There are more living organisms on the skin of a single human being than there are human beings on the surface of the earth.
26. During your lifetime, you’ll eat about 60,000 pounds of food, that’s the weight of about 6 elephants!
27. A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realises
28. The surface area of a human lung is equal to that of a tennis court.
29. Humans and dolphins are the only species that have sex for pleasure.
30. In space, astronauts cannot cry, because there is no gravity, so the tears can’t flow!
31. Our Brain has over 100 billion nerve cells.
32. Your body contains enough iron to make a spike strong enough to hold your weight.
33. Most people have lost fifty per cent of their taste buds by the time they reach the age of sixty.
34. The human body has less muscles in it than a caterpillar.
35. The life span of a taste bud is ten days.
36. Give a tennis ball a good, hard squee ze. You’re using about the same amount of force your heart uses to pump blood out to the body.
37. The average person falls asleep in seven minutes.
38. Your ribs move about 5 million times a year, every time you breathe! it’s there.
39. The femur/thigh bone is the longest bone in our body, it is about a quarter of ones height.
40. If you could save all the times your eyes blink in one life time and use them all at once you would see blackness for 1.2 years!
41. At birth we have over 300 bones. As we grow up, some of the bones begin to fuse together as a result an adult has only 206 bones.
42. Give a tennis ball a good, hard squee ze. You’re using about the same amount of force your heart uses to pump blood out to the body.
43. The life span of a taste bud is ten days.
44. It’s impossible to sneeze with your eyes open.
45. Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.
46. Humans are the only primates that don’t have pigment in the palms of their hands.
47. Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.
48. If you could save all the times your eyes blink in one life time and use them all at once you would see blackness for 1.2 years!
49. When you blush, your stomach lining also reddens.
50. The aorta, the largest artery in the body, is almost the diameter of a garden hose.
51. The aorta, the largest artery in the body, is almost the diameter of a garden hose.
52. The heart pumps about 1 million barrels of blood during an average lifetime – that’s enough to fill 2 oil super tankers!
53. Your body has about 5.6 liters (6 quarts) of blood. This 5.6 liters of blood circulates through the body three times every minute.
54. 10% of human dry weight comes from bacteria.
55. The amount of carbon in the human body is enough to fill about 9,000 ‘lead’ pencils.
56. Babies start dreaming even before they’re born.
57. Most people have lost fifty per cent of their taste buds by the time they reach the age of sixty.
58. There are more living organisms on the skin of a single human being than there are human beings on the surface of the earth.
59. From the age of thirty, humans gradually begin to shrink in size.
60. Babies start dreaming even before they’re born.
61. Every square inch of the human body has an average of 32 million bacteria on it.
62. The surface area of a human lung is equal to that of a tennis court.
63. 10% of human dry weight comes from bacteria.
64. One square inch of human skin contains 625 sweat glands.
65. It’s impossible to sneeze with your eyes open.
66. Your body has about 5.6 liters (6 quarts) of blood. This 5.6 liters of blood circulates through the body three times every minute.
67. The heart pumps about 1 million barrels of blood during an average lifetime – that’s enough to fill 2 oil super tankers!
68. Humans are the only primates that don’t have pigment in the palms of their hands.
69. There is more bacteria in your mouth than the human population of the United States and Canada combined
70. In the average lifetime, we spend five years eating and we consume around 7,000 times our own weight in food.
71. When we go to sleep and enter REM (Rapid Eye Movement),our bodies become completely paralysed as areas of the brain that control movement are de-activated. It is this that stops us falling out of bed.
72. Skin can now be artificially grown.One amazing result of this is that the skin from one hand could be grown into enough to cover six football pitches.
73. Human teeth are almost as hard as rocks.
74. You burn more calories while sleeping than you do when watching television.
75. Our eyes never grow, and our nose and ears never stop growing.
76. Women blink nearly twice as much as men.
77. The human gut contains about 1kg (2.2 lbs) of bacteria. In fact, there are more bacteria growing in and on the body than there are human cells.
78. You can only smell 1/20th as well as a dog.
79. People are the only animals in the world who cry tears.
80. In your very own lifetime, you’ll produce enough spit to fill two swimming pools.
81. You breathe in about 7 quarts of air every minute.
82. Your dad sweats enough each day to fill up a 6 pack of soda cans…and then some.
83. If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
84. If you toot consistently for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb.
85. In 24 hours, the blood in the body travels a total of 12,000 miles – that’s four times the width of North America.
86. If you blink one eye you move over 200 muscles.
87. The human heart creates enough pressure when it pumps blood, that it could squirt blood 30 feet.
88. Banging your head against a wall uses 150 calories an hour.
89. On average people fear spiders more than they do death.
90. Americans on the average eat 18 acres of pizza every day.
91. The length of your foot is the same as that of your forearm between your wrist and the inside of your elbow.
92. Every time you lick a stamp, you’re consuming 1/10 of a calorie.
93. Right-handed people live, on average, nine years longer than left-handed people do.
94. Humans have more facial muscles than any other animal on earth – 22 on each side of the face.
95. A fetus acquires fingerprints at the age of three months
96. Did you know that you are more likely to be killed by a champagne cork than by a poisonous spider?
97. You sit on the biggest muscle in your body, the gluteus maximus a.k.a. the butt. Each of the two cheeky muscles tips the scales at about two pounds (not including the overlying fat layer).
98. In a lifetime, a human being will grow six feet of nose hair and shed 42 lbs of dead skin.
99. The human hand contains three main nerves, two major arteries and 27 different bones – more of the body is devoted to controlling the hands than any other part of the body.
100. Before their first birthday, average babies will have dribbled 255 pints of saliva. By the time they’re two years old, they will have crawled 93 miles.
101. If Barbie were life-size, her measurements would be 39-23-33. She would stand seven feet, two inches tall and have a neck twice the length of a normal human’s neck.
102. By the time a woman has reached her 60s, she will have released around 450 baby making eggs
103. There are 137 million light sensitive cells in the eye’s retina and the fluid that fills the eye is changed 15 times a day.
104. Your eyeballs are three and a half percent salt.
105. When full, the human bladder can hold two pints of urine.
106. The average human head weighs about 10 pounds.
107. The DNA helix measures 80 billionths of an inch wide.
108. Beards are the fastest growing hairs on the human body. If the average man never trimmed his beard, it would grow to nearly 30 feet long in his lifetime.
109. A human being can look forward to having sex an average of 2,580 times with five different partners.
110. Children grow faster in the springtime.
111. It only takes 7 pounds of pressure to rip your ear off.
112. We breathe 13 pints of air every minute.
113. The tiniest muscle, the stapedius of the middle ear , is just one-fifth of an inch long.
114. The average human brain weighs about 3 pounds.
115. The thumbnail grows the slowest; the middle nail grows the fastest
116. It takes about 20 seconds for a red blood cell to circle the whole body.
117. An average human drinks about 16,000 gallons of water in a lifetime.
118. Humans shed about 600,000 particles of skin every hour – about 1.5 pounds a year. By 70 years of age, an average person will have lost 105 pounds of skin.
119. Your body contains enough iron to make a spike strong enough to hold your weight.
120. Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.

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