40 Interesting facts about the Human Body


  1. The acid in your stomach is strong enough to dissolve razor blades.
  2. The human body is estimated to have 60,000 miles of blood vessels.
  3. Humans lose an average of 40 to 100 strands of hair a day.
  4. Women’s hair is about half the diameter of men’s hair.
  5. The lifespan of a human hair is 3 to 7 years on average.
  6. Every inch of the skin, there are about 32 million bacteria.
  7. 300 billion new cells are produced every day. 300 million old cells die every minute.
  8. The tooth is the only part of the human body that can’t repair itself.
  9. On average, your kidneys will filter around 1.3 litres of blood every minute.
  10. Men produce around 10 million sperm per day.
  11. On average, a woman’s body produces about 1/2 a million eggs.
  12. On average, an individual grows over 450 miles of hair in a lifetime.
  13. The largest cell in the human body is the female egg and the smallest is the male sperm.
  14. There are about one trillion bacteria on each of your feet.
  15. A human sneeze creates a blast of air that can be moving more than 100 miles per hour.
  16. The average human drinks about 16,000 gallons of water in his or her lifetime.
  17. A baby human’s fingerprints are formed after just three months of the pregnancy.
  18. The brain operates on the same amount of power as a 10-watt light bulb.
  19. Babies are born with 300 bones, but by adulthood, the number is reduced to 206.
  20. By the time they are 60 years old, most humans have lost half of their taste buds.
  21. The human body has enough iron in it to make a 3 inches long nail.
  22. The average human head has about 100,000 hairs.
  23. Nerve impulses to and from the brain travel as fast as 170 miles per hour.
  24. An adult human body contains approximately 100 trillion cells.
  25. There are nearly 46 miles of nerves in an adult’s body.
  26. Fingernails grow 4 times faster than toenails.
  27. The strongest muscle in the human body is the tongue.
  28. The human body is estimated to have 60,000 miles of blood vessels.
  29. Everyone has a unique smell, except for identical twins, who smell the same.
  30. All babies are colour blind at birth, they see only black and white.
  31. Your body requires 1000-1500 calories per day just to simply survive: breathing, sleeping and eating.
  32. To completely regrow a human fingernail or toenail, all the way from base to tip takes about 6 months.
  33. The brain has approximately 100 billion nerve cells that send and receive information around the body.
  34. A normal human being can survive 20 days without eating but can survive only 2 days without drinking.
  35. By the time it is seventy years old, your human heart will have beat an average two-and-a-half billion times.
  36. The only part of your body that has no blood supply is the cornea in the eye. It gets its oxygen directly from the air.
  37. In just 30 minutes, the average person’s body produces enough heat to boil a 1/2 gallon of water.
  38. Your lungs need a lot of breathing room. The total surface area of the lungs is approximately equal to the size of a tennis court.
  39. The human brain cells can hold between 3 and 1000 Terabytes of information. The National Archives of Britain, containing over 900 years of history, only takes up 70 terabytes.
  40. The brain only makes up about 2% of the body but uses 20% of the oxygen that enters the bloodstream.




> If you fake laugh long enough you’ll start to really laugh, really, really hard.

> The Beatles used the word “love” 613 times throughout their career.

> Every year, millions of trees grow thanks to squirrels forgetting where they buried their nuts.

> The miles travelled by the Apollo 11 crew to the moon were greater than every single exploration mission to the New World combined.

> Penguins only have one mate their entire life and “propose” by giving their mate a pebble.

> Despite high infant mortality rates and lower life expectancies, not one of your direct ancestors died childless.

> Cuddling releases Oxytocin which helps speed healing and recovery from physical wounds.

> Otters hold hands when sleeping so they don’t drift away from each other.

> There’s a type of jellyfish that lives forever.

> The clitoris has 8000 nerve fibres, double that of the penis, and is the only organ in the body, which has evolved purely for pleasure.

> Butterflies can taste with their feet.

> For someone, somewhere in the world, today is the most amazing day of their life.

> When you die, your body decomposes, and the atoms that contained “you” are recycled into Earth to be used again.

> Rats giggle when you tickle them. Their voices are so high-pitched you need special equipment to hear them, but when you do, their laughs are immediately evident.

> Sea horses mate for life, are completely faithful and travel together by holding on to each others tails.

> Male puppies, when playing with female puppies, will intentionally let the female win.

> It takes seventeen muscles to smile and forty-three to frown.

> The majority of European children born in 2013 will live to see the year 2100.

> Cows have best friends.

> Neurologically speaking, seeing somebody else smile actually makes you happier.

> Every human being spent about half an hour as a single cell.

> Once your brain realizes that you’re dying, it releases DMT, one of the most powerful known psychedelics. This dilates your perception of time and allowing you to live inside your own mind for hours or even days.

> No matter how long you live there will always be an amazing new food for you try.

> A pig’s orgasms last thirty minutes.

> We are going to die, and that makes us the lucky ones. Most people are never going to die because they are never going to be born

> Spinner dolphins sleep in pairs, one with the left hemisphere asleep, the other with the right. They each keep watch with one eye and half a brain. They are known to sleep-mate for life.

> At the time of your birth, you were, for a few seconds, the youngest person on the planet.

> Cows produce the most milk when listening to the song Everybody Hurts by REM.

> Somewhere, someone is losing their virginity right now.

> If you spell out numbers in order, the first time you get to the letter “a” is at one-thousand.

> A monkey was once tried and convicted for smoking a cigarette in South Bend, Indiana.

> Happiness is a skill. You can learn it and it’s not hard.

> Except when breeding, the Common Swift spend their entire lives in the air, living on the insects they catch in flight. They drink, feed, and often mate and sleep on the wing

> Baby rabbits are called kittens.

> Worms communicate by snuggling.

> 2013 is the first year since 1987 that consists for four different digits.

> If you blend a sea sponge, it will re-form back into a sea sponge.


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