100 Most Interesting Quirky Human Body Facts – Amazing Body Facts You Didn’t Know About

  1. Leukocytes in the human body live for two to four days, and erythrocytes for three to four months.
  2. A kiss increases a person’s pulse to 100 beats per minute or more.
  3. The total length of all the blood vessels in the human body is about 100,000 km.
  4. The average person forgets 90% of their dreams.
  5. There are about 40,000 bacteria in the human mouth.
  6. Every year more than 2 million left-handed people die because of mistakes they make when using machines designed for right-handed people.
  7. Out of all the people who can move their ears, only one third of them are able to move just one ear.
  8. The average human body contains enough sulphur to kill all the fleas on the average dog, enough carbon to make 900 pencils, enough potassium to fire a toy cannon, enough fat to make seven bars of soap and enough water to fill a 50-litre barrel.
  9. If you were locked in a completely sealed room, you would not die due to a lack of air, but from carbon dioxide poisoning.
  10. It is impossible to sneeze with your eyes open.
  11. Right-handed people live, on average, nine years longer than left-handed people.
  12. There are more than 100 different viruses which cause a cold.
  13. During their lifetime, a person will on average accidentally swallow eight small spiders.
  14. By the end of a person’s life, they can recall, on average, around 150 trillion pieces of information.
  15. The facial hair of a blonde-haired man grows faster than that of a man with dark hair.
  16. When you blush, your stomach also turns red.
  17. Everyone alive on Earth could comfortably be placed into a cube with sides 1000 meters long.
  18. Human beings are the only living things which sleep on their backs.
  19. You can lose 150 calories per hour if you hit your head against the wall.
  20. Right-handed people chew most of their food on the right side of their mouth, whereas left-handed people do so on the left.
  21. An adult person performs around 23,000 inhalations and exhalations a day.
  22. The smallest cells in a man’s body are sperm cells.
  23. Ingrown toenails are hereditary.
  24. The strongest muscle in the human body is the tongue.
  25. One percent of people can see infra-red light and 1% can see ultra violet radiation.
  26. At birth, a child’s body is made up of around 300 bones. But an adult has just 206.
  27. If someone kisses another person for a certain amount of time, this is much more effective in terms of hygiene than using chewing gum, as it normalises the level of acidity in your oral cavities.
  28. The human heart is approximately equal in size to that of a person’s fist. An adult’s heart weights 220-260 grams.
  29. If allowed to grow for their whole lifetime, the length of someone’s hair would be about 725 kilometres.
  30. A person uses 17 muscles when they smile, and 43 when they frown.
  31. Your right lung can take in more air than your left.
  32. A person would die quicker from a total lack of sleep than from hunger. Death would occur after ten days without sleep, whereas from hunger it would take several weeks.
  33. Fingernails grow about four times faster than your toenails.
  34. Each of us has around 2,000 taste buds.
  35. Teeth are the only part of the human body which cannot heal themselves.
  36. On average, a person needs seven minutes to fall asleep.
  37. According to German researchers, the risk of having heart attack is higher on Monday than on any other day of the week.
  38. Our eyes remain the same size as they were at birth, but our nose and ears never stop growing.
  39. 50,000 cells in your body died and were replaced by new ones while you were reading this sentence.
  40. People with blue eyes are more sensitive to pain than others.
  41. On average, a person’s respiration rate is one third higher in spring than in autumn.
  42. At birth, there are 14 billion cells in the human brain. This number does not increase throughout a person’s lifetime.
  43. Women’s hearts beat faster than men’s.
  44. A feeling of thirst occurs when water loss is equal to 1% of your body weight. The loss of more than 5% can cause fainting, and more than 10% causes death from dehydration.
  45. The rate at which a person’s hair grows doubles during an airplane flight.
  46. The total weight of the bacteria in the human body is 2 kg.
  47. By the age of 60 most people lose half of their taste buds.
  48. Not only human beings, but also koalas have unique finger prints.
  49. Parthenophobia is a fear of virgins.
  50. Women blink about two times less often than men.
  51. A person who smokes a pack of cigarettes a day is doing the equivalent of drinking half a cup of tar a year.
  52. The human heart pumps blood at such pressure that it would be able to raise blood up to the fourth floor of a building.
  53. Only 1% of the bacteria can result in the human body becoming ill.
  54. The muscles which help your eyes to focus complete around 100,000 movements a day. In order to make your leg muscles do the same amount of movements, you would need to walk 80 kilometres.
  55. The structure of the human body contains only four minerals: apatite, aragonite, calcite, and crystobalite.
  56. Everyone has dimples on their lower back, but on some people they are more pronounced than on others. They appear where the pelvis joins with the sacrum, so their appearance makes sense.
  57. The retinas inside the eye cover about 650 square mm and contain 137 million light-sensitive cells: 130 million are for black and white vision and 7 million are for helping you see in colour.
  58. The human heart pumps 182 million litres of blood during the average lifetime.
  59. The average four-year-old child asks 450 questions a day.
  60. The average life expectancy is 2,475,576,000 seconds. During this time we pronounce, on average, around 123,205,750 words and have sex 4,239 times.
  61. It turns out that one man in every three hundred is capable of satisfying themselves orally.
  62. Men are officially classified as dwarves if their height is below 1.3 m, whereas for women the measure is 1.2 m.
  63. The scientific name for the belly button is the umbilicus.
  64. In the morning, a person is about 8 millimetres taller than in the evening.
  65. A cough amounts to an explosive charge of air which moves at speeds up to 60 miles per hour.
  66. Human lips are hundreds of times more sensitive than the tips of a person’s fingers.
  67. A newborn child can breathe and swallow at the same time for up to seven months.
  68. Your skull is made up of 29 different bones.
  69. After 25 years, the number of cells falls by 100,000 every day. About 70 cells die in the minute it takes you to read a page in a book. After 40 years, the decline of the brain accelerates sharply, and after 50 years neurons (that is, nerve cells) shrink and the brain gets smaller.
  70. The surface area of the human lungs is approximately equal to the area of a tennis court.
  71. On average, a person says 4,800 words in 24 hours.
  72. The human embryo acquires fingerprints within three months of conception.
  73. We lose 80% of our body heat from the head.
  74. Nerve impulses sent from the brain move at a speed of 274 km/h.
  75. Human beings are the only animals which can draw straight lines.
  76. The fragrance of apples and bananas can help a person to lose weight.
  77. If one identical twins lacks a certain tooth, the other twin will not have that tooth either.
  78. The chemical compound in the body which causes feelings of ecstasy (phenylethylamine) is also contained in chocolate.
  79. The total strength of masticatory muscles on one side of your jaw is equal to 195 kilograms.
  80. At least 700 enzymes are active in the human body.
  81. The only part of the body that has no blood supply is the cornea of the eye. It receives oxygen directly from the air.
  82. A person passes on 278 different types of bacteria to another person when they kiss them. Fortunately, 95% of them are not harmful.
  83. Statistically, only one person out of two billion reaches the age of 116 years old.
  84. During a person’s lifetime, the small intestine is about 2.5 meters. After they die, the muscles in the walls of their intestine relax, and it’s length increases to 6 meters.
  85. The human brain has a memory capacity which is the equivalent of more than four terabytes on a hard drive.
  86. If you collected all the iron contained in the human body, you would get just a small cog, big enough only for use in your watch.
  87. About two thirds of people tilt their head to the right when kissing.
  88. Only 7% of people are left-handed.
  89. A passionate kiss causes the same chemical reactions in the brain that skydiving and firing a gun do.
  90. 100,000 chemical reactions occur in the human brain every second.
  91. Bones are about 5 times stronger than steel.
  92. A person burns more calories when they are asleep than when they watch TV.
  93. The human eye can distinguish 10 million different colours.
  94. A man named Charles Osborne hiccupped for a total of 68 years.
  95. Nerve impulses in the human body move at about 90 m/s.
  96. Children grow faster in the spring.
  97. During a person’s lifetime, they spend about 2 weeks kissing.
  98. A single human brain generates more electrical impulses in a day than all the telephones of the world combined.
  99. 99% of the calcium contained in the human body is in one’s teeth.
  100. Human skin is completely replaced about 1,000 times during a person’s lifetime.
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