IQ, n.Trivia

First born children have higher IQ's than their younger siblings.

Iodine was added to salt in 1924 to combat goiters, but the iodization also resulted in notable increases in intelligence

Men who are unfaithful tend to have lower IQs.

IQ can decrease by an average of 13% when people are more stressed

IQ averages have bee declining over recent decades due to the fact that smarter people are having less children.

Poor eyesight (myopia) is associated with higher IQ.

The IQ test was invented to help identify students who needed help, and was explicitly not intended to be used to rank unitary and linear intelligence.

IQ tests can be affected by motivation. By promising subjects monetary rewards she found that the higher the reward, the higher they scored on the IQ test.

racism and homophobia are linked to having lower IQ as those with lower intelligence tend to gravitate toward socially conservative ideologies.