Science is giving a new meaning to “I got it from my mama.” If you’ve ever wondered why you’re constantly the smartest person in the room (like me!), researchers have an answer: it’s because of your mom.
According to a recent study, mothers are reportedly more likely to pass on intelligence genes to their kids than their fathers. Apparently the smarts are carried in the X chromosome, and women (for anyone who didn’t pass health class) have two X chromosomes, while men only have one. Scientists also believe that intelligence genes that are inherited from the father are automatically deactivated. Bummer!
According to a Psychology Spot blog post from earlier this year, lab studies on genetically modified mice found that those with extra doses of maternal genes developed bigger heads and brains, while those who had more paternal genes had smaller brains and heads.
Researchers at Glasgow’s Medical Research Council had similar findings when they interviewed 12,686 participants every year from 1994 on. Observing several characteristics, including skin color, education and socio-economic status, researchers found that the best predictor of intelligence rested on the mother’s IQ.
Sadly, future fetuses, just because your mom’s a super brilliant woman, doesn’t mean you’ll automatically have the same fate — you just have better chances. According to Metro, genetics only account for 40% to 60% of human intelligence. The rest depends on a person’s environment.
Right well, we’re going to side with the part of this study we enjoy most: our moms are smart, which makes us smart. Hooray!