Poor eyesight (myopia) is associated with higher IQ.
232
You can only remember 4 things at a time.
31
Intelligent people have more zinc and copper in their hair.
233
Dolphins have names for one another.
18
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
In the US, people can be rejected from joining the police force if they are too intelligent.
45
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155