IQ has always been the subject of various studies.

Two of the most interesting questions that have been asked about intelligence are: where does it come from? Why do some people have the highest intellect?

Where does it come from?

It has been shown that genetics plays an important role in intelligence, as it is responsible for 50 to 80 percent of a person’s intellectual abilities. Something extremely striking, communicated by the American scientist Robert Lehrke, is that intelligence is inherited from the breast, since the intelligence gene resides on the X chromosome, provided by it. Being a woman, she has two X’s and that gives her a greater probability of transmitting intelligence to her children, from the genetic point of view.

The scientists conducted tests on mice. They were given one dose of maternal genes and another with paternal genes.

The mice in the first group, with maternal genes, were born with larger brains and smaller bodies, while the opposite was true in the second group: small brains and larger bodies.

So the researchers discovered that the brain has paternal and maternal areas, but the difference lies in the place where they accumulate. While the paternal ones stayed in the area related to survival, food and sex, the maternal ones stayed in areas that have to do with thought, planning, language and intelligence. This study showed that mothers are genetically responsible for transmitting the cells of intelligence.

However, it is necessary to clarify that, despite the fact that intelligence is inherited, it is only in a certain percentage, since there are other factors that help the boy or girl to develop their IQ to the maximum and therefore, in many Sometimes the children of parents with a highly developed intellect do not show their intelligence as much.


Doctors Horst Hameister and Ulrich Zechner, from the University of Ulm, in Germany, studied the genes related to brain damage.

In their investigations, they found that many of these genes were found on the X chromosome and that they are related to memory and nerve endings in the brain.

According to a controversial theory, women would be responsible for intelligence, by giving priority, at the time of choosing a partner, to intelligence over appearance, setting in motion a selection mechanism.

But the mother exerts a very powerful effect on the development of the children and not only through the genes.

Physical contact with the baby, caresses and maternal pampering, affect better development in children.

A study published in The Journal of Neuroscience, in which researchers from the University of Adelaide in Australia and Duke in the United States participated, highlights that mother’s caresses could help children later avoid drug use . According to Staci Bilbo, one of the researchers, in animal experiments it was found that physical contact with the mother increases the production of a molecule capable of changing the way the brain responds to addictive substances.


The sequencing of the human genome was one of the most important scientific advances in recent times. Among other things, it was discovered, by analyzing the DNA of more than 24,000 people living in the United Kingdom, that more than 500 genes are related to intelligence.

By testing IQ and cognitive abilities in people who were genetically predisposed or not predisposed to have brilliant intellect, scientists associated these genes with 187 types of human thinking abilities.

Thus they found that there are other factors that help people to develop and preserve their intelligence, in interaction with genetic factors.

-Stimulation is one of them. Specialists suggest that when a baby is in the womb, it can already receive stimuli, which will facilitate the development of certain cognitive abilities.

-Another fundamental aspect for the development of intelligence is motivation. If parents motivate their children to be better, express themselves correctly and be constantly learning, they will do it.

-A good environment is another aspect that affects the development of intelligence. Growing up in a healthy environment is essential for the expression of potentialities.

Proper nutrition, for example, is one of the deciding factors. A longer breastfeeding time is related to a higher degree of intelligence and success in the future life of the baby. A nutritious diet during pregnancy and parenting, taking into account superfoods, also contributes to this.

With this, the specialists affirm that, although intelligence is a biological construction because it is inherited, the environment and the conditions of upbringing, care and motivation are essential to have brilliant children, with an intelligence that can even surpass that of their parents.

The emotional bond that exists between the parents and the baby, the attachment that the child develops with his parents, makes it easier for him to overcome frustration and solve his problems. In this aspect, there are also studies that favor the mother. The child’s ability to adapt to changes and solve a problem, his autonomy, independence, confidence and self-esteem and values ​​such as effort, perseverance and the child’s commitment and interest in learning, are based on this early relationship.

Previous articleHow to know if you intimidate a man?
Next articleWhat you should know about anal toys? – enjoymytoy