In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Poor eyesight (myopia) is associated with higher IQ.
232
The higher someone’s I.Q. the more likely they are to be sleep deprived.
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People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
Intelligent people have more zinc and copper in their hair.
233
You can only remember 4 things at a time.
31