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)
  • drewm-nar
    1/15/2016 - 08:31 a.m.

    Because their parents have told them and they saw it on Tv so they could have believed it.

  • abbiew-nar
    1/15/2016 - 08:31 a.m.

    This article is very interesting. It shows that some things that we think we've known our whole life may not be true. Myth number 5 was my favorite because i think to never swallow gum because it may never digest but now i know that it not true. Some people may think we lose heat from our heads because it's exposed the most.

  • alic-nar
    1/15/2016 - 08:33 a.m.

    hah this was very interesting and I know know some false facts

  • jasmines-nar
    1/15/2016 - 09:50 a.m.

    Most people wouldn't have known that heat is lost from our heads.

  • eleganceb-nar
    1/15/2016 - 09:51 a.m.

    Because our heads have a lot of sweat glands in them. Or, they probably have had head sweat before and suddenly, they think they've lost weight

  • jillianr-nar
    1/15/2016 - 09:51 a.m.

    This was a very interesting article. Most of these myths I didn't know. The one about the 5 senses surprised me because that is what we have been taught since we were young.

  • isabellas-nar
    1/15/2016 - 09:52 a.m.

    I think people might have thought that because we are exposed to the heat more into the year than the two or three months of cold weather we have.

  • jacksonv-nar
    1/15/2016 - 09:54 a.m.

    I really don't know maybe a lot of people are stupid.

  • mariaha-nar
    1/15/2016 - 09:54 a.m.

    They might have thought that because we do a lot with our heads. We use so much that we didn't know we do.

  • jackg-nar
    1/15/2016 - 09:55 a.m.

    This was a very cool article. I think that people may have thought that we lose heat through our heads for many reasons. One reason is that we breathe and smell through our noses and mouths which both go into our head so maybe they were thinking that we were sucking in heat through our mouths and noses.

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