Knowledge_Facts-1




Some amazing Facts about human body:

  • The human nose can detect about 1 trillion smells.
  • You have two kidneys, but only one is necessary to live.
  • Teeth are the only part of the human body which cannot heal themselves.
  • Blood makes up about 8 percent of your total body weight.
  • Goose bumps evolved to make our ancestors’ hair stand up, making them appear more threatening to predators.
  • It is impossible to sneeze with your eyes open.
  • Your fingernails don’t actually grow after you’re dead.
  • Humans are the only animals with chins.
  • Women's hearts beat faster than men's.
  • As you breathe, most of the air is going in and out of one nostril. Every few hours, the workload shifts to the other nostril.
  • Your brain is sometimes more active when you’re asleep than when you’re awake.
  • The satisfying sound of cracking your knuckles comes from gas bubbles bursting in your joints.
  • Your tongue is made up of eight interwoven muscles, similar in structure to an elephant’s trunk or an octopus’s tentacle.
  • Your mouth produces about one litre of saliva each day.
  • The foot is one of the most ticklish parts of the body.
  • The heart beats more than 3 billion times in the average human lifespan.
  • The average person has 67 different species of bacteria in their belly button.

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