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Human body facts

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Human body facts

Human body facts

  • The human body is better suited to two four-hour sleep cycles than one eight-hour one. It has also been shown that the colder the room you sleep in, the better the chances are that you'll have a bad dream.

  • The average human body contains enough...
    i) Sulphur to kill all fleas on an average dog
    ii) Carbon to make 900 pencils
    iii) Potassium to fire a toy cannon
    iv) Fat to make seven bars of soap
    v) Phosphorus to make 2,200 match heads
    vi) Water to fill a ten-gallon tank

  • Research has shown that the scent of grapefruit on a middle-aged women will make her appear about six years younger to men. However, this perception is not reciprocal and the grapefruit scent on men has absolutely no effect on women's perception.

  • Babies are born without kneecaps. They only appear when the child is 2-6 years of age.

  • The nails on longer fingers grow more quickly than nails on shorter ones. Nails also grow more rapidly on the hand you favour. In other words, if you're right-handed, the nails on your right hand will grow quicker than on your left.

  • Fancy a beard as big as Gandalf's? Then think about sex a bit more. Weird as it may sound, having sex on the brain causes quicker beard growth as it increases production of testosterone in the body. Not that we're saying Gandalf thinks about sex. That would be wrong.

  • Only one bone in your body isn't connected to any others. This heroic loner is the hyoid and is attached to various muscles in your neck, right at the base of the tongue.

  • Humans have 46 chromosomes. Which is pretty rubbish when you consider that goldfish have 94. Even an amoeba has us beat with 50 chromosomes.

  • While the brain and the heart get all the hype, your liver's the unsung hero of your body. With over 500 functions, it's one of the busiest, bad-ass organs you have. It also has regenerative powers an X-Man would envy, able to grow back to normal size even after 80% is removed.

  • If you ate enough carrots you would turn orange.

  • The average human being produces 10,000 gallons of saliva in a lifetime.

  • The hardest bone in the human body is the jawbone, while the strongest muscle in the human body is the tongue.

  • There are more living organisms on the skin of each human than there are humans on the surface of the earth.

  • In one single square inch of skin there lies four yards of nerve fibres, 1300 nerve cells, 100 sweat glands, three million cells, and three yards of blood vessels.
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