Have you ever wondered what determines a child’s intelligence? Today’s research shows that it is closely related to the mother, not only biologically, but also emotionally and socially.
Intelligence Genes and Mother’s X Chromosome
Scientists believe that most of the genes related to intelligence are found on the X chromosome. Mothers have two X chromosomes, while fathers have only one. For this reason, children inherit their intelligence mostly from their mothers.
One study examined more than 5,000 children and found that a child’s IQ is highly correlated with his or her mother’s IQ. Although the father’s IQ has an effect, it is very limited.
The right environment is also important, along with genes
Although genetics is responsible for 40-60% of intelligence, the rest of intelligence is developed by environmental factors such as nutrition, love, mental stimulation, and education.
Child psychologist Dr. Meera Rao says:
A child’s development is not just determined by genes. Mother’s behaviour, care and encouragement are also very important.
Mother’s emotional bond, the foundation of a child’s thinking
The mother is the child’s first teacher. Her affection, nurturing, and language education shape the child’s thinking, emotional understanding, and creativity. This bond gives the child the ability to understand himself, express emotions, and make decisions.
Some studies have shown that breastfed babies have slightly better IQs. But when the mother’s education and intelligence were taken into account in these studies, the benefit was not as significant. This means that proper nutrition and complete care from the mother are most important for the child.
So is the father’s role any less? Absolutely not!
Although the genes for intelligence come from the mother, the father’s contribution to a child’s mental development is very important:
- Providing emotional balance
- Encouraging discipline and curiosity
- Supporting creative and academic development
So, while the mother builds the foundation of the brain, the father helps give it direction.
New research shows maternal affection in childhood predicts key personality traits like conscientiousness, openness & agreeableness—traits linked to lifelong success. Early parenting matters more than we thought. pic.twitter.com/DdMsURBz8Z
— Neuroscience News (@NeuroscienceNew) April 18, 2025
Mother’s fatigue and its impact
Today’s mothers are not only raising their children but also contributing to the financial responsibilities of the house. The emotional state of the mother has a profound effect on the thinking and behavior of children.
In a post on Scary Mommy, a mother wrote,
The dream of buying a house, rising inflation, and the responsibility of children – handling everything at the same time is very emotionally tiring.
This fatigue often affects the mental health of the mother, and its effect reaches the children.
Families are changing, but not mothers’ love
In an experience published in the Washington Post, a woman reported that she felt lonely and neglected at her brother’s wedding because she was unmarried. This incident reflects today’s changing family structure. Yet, no matter what kind of family it is, a mother’s selfless love, understanding, and support are the strongest foundation of every relationship.
Conclusion
A child’s intelligence, emotional strength, and thinking power are not just determined by genes but by the mother’s nurture and love. Fathers are also equal partners in this journey. The complete development of a child is possible only with the cooperation and understanding of both parents.
