Five false facts about the human body They myth that it takes seven years to digest gum? It's just a myth. (Thinkstock)
Five false facts about the human body
Lexile

You asked us to debunk some "facts" about the human body.  Let's science this!
 
So here are five popular myths that just are not true.
 
First, we have five senses, right? Wrong. Depending on how you define a sense, we actually have between 5 and 33 of them. Beyond the classics, we have a sense of balance and the ability to sense heat and time, along with all kinds of other cool spidey senses.
 
Second, what about the idea that giving kids sugar makes them bounce-off-the-walls hyperactive? Nope -- the evidence for that cause-and-effect link is surprisingly slim and it's apparently more of a self-fulfilling prophecy than fact.
 
Myth number three - we only use 10% of our brains. This one drives me insane because it's totally bogus. We use virtually every part of our brain and most of it is active almost all of the time.
 
Myth number four. Despite all the heavy lifting going on up there, it's totally false that we lose most of our body heat through our heads. The amount of heat we lose depends on how much skin surface area is exposed to the cold, so, yes, you'll lose more heat through a bald head than a gloved hand, but the opposite is just as true. 
 
And finally, I know what your mom said, but trust me, I'm a scientist. It doesn't take 7 years to digest swallowed gum. The base element of gum is pretty much indigestible, but it'll still pass through our system within a week if not faster.

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CRITICAL THINKING QUESTION
Why might people have thought that we lose most of our heat through our heads?
Write your answers in the comments section below


COMMENTS (124)
  • juliac-nar
    1/15/2016 - 09:57 a.m.

    Wow. I am surprised that all of those 'facts' aren't true. Its interesting that all of those myths were scientifically proven wrong.

  • austinm-nar
    1/15/2016 - 09:57 a.m.

    People may have thought that most of our heat is lost through our heads because of how much exposure to the inside of your body is located on your head. There are several organs on your face that lead inside of your body, such as your ears, eyes, mouth and nose. Because of this, some may have or noticed that your breath is normally hot or jumped to conclusions, without any scientific fact.

  • naiyasiaa-nar
    1/15/2016 - 10:02 a.m.

    They thought that because the amount of heat we lose through are heads depends on the amount of skin are exposed to the cold.

  • kairik-nar
    1/15/2016 - 10:03 a.m.

    I have no idea where this idea came from. I mean, who would think that heat comes out of your head? Although, it may have came from hot heads when you have a fever or something.

  • katelyns-nar
    1/15/2016 - 10:10 a.m.

    People might think that we lose most of the heat through are heads are because its not really covered up more then are hands.

  • ronp-nar
    1/15/2016 - 10:11 a.m.

    The people are relying on the fact that heat wastes more on their head. Instead of their skin.

  • danielm-nar
    1/15/2016 - 10:12 a.m.

    sciences are saying that you have more then five senses.

  • haliahb-nar
    1/15/2016 - 10:15 a.m.

    Because our brain is moving around and working and sending neuron messages. They thought the neurons built up heat so they thought the cold would absorb the heat. Not true!

  • nathanc-nar
    1/15/2016 - 10:41 a.m.

    Most of these i knew were not true, but the whole 33 senses part blew my mind.

  • biancag-nar
    1/15/2016 - 10:43 a.m.

    It was very interesting to me how the facts that I personally know are true are actually not. For example, we have 5 to 33 sense.

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