Interesting Facts About the Human Body

Interesting Facts About the Human Body

Interesting Facts About the Human Body


Which is the strongest muscle in our body? Why do we feel thirsty? What is the average lifespan of our hair? And several other questions about our body parts we take for granted, even after we hang out with our own body all the time. If you stop and think about everything your body does, you might consider how great it is. In this article, we will discuss some interesting facts about the human body.



  • The human brain is sometimes more active when you’re asleep than when you are awake.


  • A person with higher IQ is supposed to dream more.



  • Toenails grow four times slower than fingernails


  • The nail of the middle finger grows faster than any other fingernail

Middle Finger

  • Men get more hiccups than women

Men More hiccups

  • The left lung of humans is 10 times smaller than the right one.
  • The cracking sound made by knuckles, necks and other joints when they are cracked is the sound of bubbles popping in the joint fluids.


  • The saliva you produce during your entire lifetime is enough to fill 2 swimming pools
  • The belly button of an average person has 67 different species of bacteria.

  • One drop of blood contains 250,000 platelets and 10,000 white blood cells
  • The size of a human cells is so small that the head of a pin can accommodate 10,000 human cells.
  • The smallest cell in the body is the male sperm and the largest cell is a female egg.



  • Do you know that the strongest muscle in the body is the tongue.
  • The human outer skin regrows every 27 days.
  • The chances of getting a nightmare increases when you sleep in a colder room.


  • The human teeth are as strong as the teeth of a shark
  • The average lifespan of a human hair is 3-7 years
  • Babies can only see black and white at the time of their birth.
  • Humans can’t kill themselves by choking with their own hands.
  • Human body loses 4 Kg of skin cells everyday


  • Facial hair grows faster than any other hair on the body.


  • The word muscle comes from a Latin word “little mouse”.

Learn about human body parts and study biology for medical examination with the help of videos at Byju’s.

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