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Discussion » Questions » Science and Technology » What's one scientific fact about humans you know that few people are aware of?

What's one scientific fact about humans you know that few people are aware of?

Posted - July 19, 2018

Responses


  • 14795
    Most are really gullible and easilly deceivable   ... Ie voters.... :( 
      July 19, 2018 4:07 PM MDT
    6

  • 10026
    Out of due respect to you and the question,  I will stick to just one. ;)

    . The cornea is the only part of the body with no blood supply – it gets its oxygen directly from the air.

    Point of reference:

    40 Amazing Facts About The Human Body

    By Katie Serena
    Published February 15, 2018
    Updated June 13, 2018
      July 19, 2018 7:01 PM MDT
    8

  • 7919
    That is cool. What would it be like if the rest of our body could do that? O_o
      July 19, 2018 8:38 PM MDT
    4

  • 5614
    Aye, indeed it is.
      July 19, 2018 10:23 PM MDT
    4

  • 5614
    What if we could, like plants, absorb nutrients directly from the Sun? In Winter would we hibernate? Methink The Most High knew conditions might arise that would be less than optimal. This post was edited by O-uknow at July 21, 2018 4:42 PM MDT
      July 19, 2018 10:27 PM MDT
    5

  • 44173
    The sunlight is the energy used to convert the nutrients to sugar.
      July 20, 2018 7:47 PM MDT
    3

  • 5835

    Oxygen is carried to the cornea by vitamin B2. The surface of the skin gets its oxygen by the same process.

    Booze destroys B2, so arteries grow into the cornea, causing bloodshot eyes, and into the surface of the skin, causing red cheeks and red nose. Some ethnicities have a genetic predisposition to B vitamin deficiencies, and that is why they are famous for their red noses.

    Vitamin B2 is a water soluble dye that makes the urine bright yellow. When the color fades, it's time to get a supplement.

      July 19, 2018 8:46 PM MDT
    5

  • 5614
    Wow! Thank you.
      July 19, 2018 10:22 PM MDT
    3

  • 2658
    Footprints ID People Like Fingerprints.
      July 19, 2018 7:18 PM MDT
    6

  • 10026
    So true!  Your tongue also has its very own unique print. I never thought about that.  It's true!  Who knew?? 
    Big winks and smiles!
      July 20, 2018 5:45 PM MDT
    4

  • 1502
    Earth revolves around the sun, not people. 
      July 19, 2018 7:18 PM MDT
    6

  • 3523
    Every human being is at the center of the universe.  I am not being figurative or cynical.  Check this out:  https://math.ucr.edu/home/baez/physics/Relativity/GR/centre.html
      July 19, 2018 7:41 PM MDT
    5

  • 7919
    That exploded my brain a little. 
      July 19, 2018 8:40 PM MDT
    4

  • 5391
    Approximately 16 million people alive today are direct descendents of Genghis Khan. 
      July 19, 2018 8:02 PM MDT
    9

  • 7919
    I've heard that, but it still amazes me.
      July 19, 2018 8:40 PM MDT
    5

  • 5391
    How about this one:

    There are 32 million more males in China than females. Fallout from 30 years of China’s “one-child only” policy. 
      July 19, 2018 9:01 PM MDT
    5

  • 7268
    Do you hear that ladies?  Looking for a husband, go to China.  
      July 20, 2018 5:52 AM MDT
    2

  • 44173
    Approximately 300,000 people in the US have an Arterioveinous Malformation. My son had one in his brain, my daughter in her lung and my sister is riddled with them. I am a carrier.
      July 19, 2018 8:41 PM MDT
    6

  • 52903

      It is humanly impossible to sneeze while fully asleep.

      July 19, 2018 10:29 PM MDT
    6

  • 13071
    Yes, and they also cant give a scientific explanation for yawning either. ;O
      July 21, 2018 12:46 AM MDT
    2

  • 10026
    If you did both in the same night, would they sneeze be the peaking moment and the yawn come afterward?  Or would it be the other way around??

      

      July 21, 2018 1:03 AM MDT
    1

  • 5835
    Only humans mate face to face.
      July 20, 2018 12:35 AM MDT
    4

  • 5391
    And not always then
      July 20, 2018 1:36 PM MDT
    1

  • 3680
    Not quite only: so do bonobos.
      September 9, 2018 4:16 PM MDT
    0