How much do brains weigh and if your head is big does it mean that you are smarter that other people.

Question: How much do brains weigh and if your head is big does it mean that you are smarter that other people.

Asked by lani to Martin on 15 Mar 2010 in Categories: Theories.

Martin Coath answered on 15 Mar 2010:

Brains weigh a few pounds – I dont know the exact figure. As far as I am aware there is NO correlation between head measurements and intelligence.

Someone MUST have checked this in the past and if it were true I would have got to hear about it.

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lani commented on 15 Mar 2010:

Thank you for answering

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Joe commented on 15 Mar 2010:

For what it’s worth, human brains weigh about 1.5kg, give or take 100gs, and there is a strong correlation with body size. So big blokes have slightly larger brains than small women, for instance, but there is no relation with intelligence. Elephants have much larger brains than people (about 5kgs) but they aren’t smarter by any test we can come up with it (of course, maybe we’re just not smart enough…)

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- Martin commented on 25 Mar 2010:
  
  Of course I don’t mean “a few pounds” I mean “less than two Kilograms” I keep forgetting nobody knows what pounds are any more!
  
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Moderator - Craig commented on 25 Mar 2010:

Good question!

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