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According to a recent study, mothers more often pass on certain genetic traits, including… intelligence!
A study conducted by the Medical Research Council Social and Public Health Sciences Unit in Glasgow, Scotland, and published in the American journal Psychology Post, revealed that genes related to intelligence are found in the X chromosome.
However, women have this chromosome in duplicate (XX) in comparison to men who only have one (XY).
After observing 13,000 young people aged 14 to 22 (since 1994), researchers concluded that the best predictor of intelligence is the mother's IQ . Indeed, the IQs of their children vary on average by only 15 points.
Another study from the University of Washington has shown that children who had a strong emotional bond with their mother had a 10% more developed hippocampus (the hippocampus is a brain area that plays an essential role in memory).
However, it is important to remember that genetics only accounts for 40 to 60% of intelligence, the rest depending on the environment , intellectual stimulation , etc.
Photo credit: Woman with newborn baby © jolopes – Fotolia.com
