AMAZING FACTS ABOUT THE HUMAN BODY

 

• Women’s hearts are smaller than men’s, therefore beat faster.
• 80% of your body heat is lost through your head.
• Around 50,000 cells in your body will die and be replaced every 3–4 seconds.
• Cracking your knuckles is just the sound of air popping in the joints’ fluid and doesn’t cause arthritis.
• The “B.O” smell isn’t actually caused by sweat. It’s caused when the bacteria feeds on the sweat.
• Human cells are so small that 10,000 can fit on the tip of a pin.
• Our body’s actually do ‘glow’, but the light is too weak to be seen by the human eye.
• Human teeth are just as strong as shark teeth.
• Goosebumps’ primary job for our ancestors was to make hairs stand up, making them appear more threatening to predators.
• The smallest bone in the human body is in middle ear, measuring only 2.8mm.
• As well as unique finger prints, we also have unique tongue prints.
• The cornea is the only part of the body that isn’t supplied blood. It gets oxygen directly from the air.
• Between birth and death, the human body goes from having 300 bones to just 206.
• 25% of your body’s bones are in your feet.
• Women’s brains actually shrink during pregnancy.
• Earwax is a form of sweat.
• During the day, the soft cartilage between your bones gets squashed and compressed so when you wake up, you’re about 1cm taller than when you go to bed.
• Human’s produce enough urine every month to fill a bath.
• The hardest bone in your body is your jawbone.
• Newborn babies don’t have kneecaps. They start as soft cartilage and harden by the age of 3.
• Most people breathe out of one nostril at a time. The side we breathe out of changes every few hours.
• Taking one step forward uses 200 muscles.
• Your skull is made up of 29 different bones.
• Your lips are 100x more sensitive than your fingertips.
• A person burns more calories when they’re asleep than watching tv.