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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