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Thank Your Mom for Making You Smart

posted: 09/17/16
by: Blythe Copeland
Little girl learning to read
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Little girl learning to read
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You already know your mom is the smartest person in the world -- which is why you should feel good about research showing that children inherit their intelligence gene from their mother. Psychology Spot rounded up the findings on several intelligence studies going back to 1984 for a closer look at how the trait is inherited.

According to the article, the gene is carried on the X chromosome, and it's one of the conditioned genes -- which will "work only if they come from the mother. If that same gene is inherited from the father, it is deactivated." Another study found that many of the genes related to brain function are also located on the X chromosome, and a long-term study of more than 12,000 teens and young adults "found that the best predictor of intelligence was the IQ of the mother. In fact, the ratio of young people's intelligence carried only an average of 15 points from that of their mothers."

But don't worry, dads: The article points out that only about half of a person's intelligence is inherited at all; the rest comes from environmental factors, personality, and mental stimulation.