According to British media reports, the latest British research results show that men with high IQ generally have higher sperm quality. This is the conclusion reached by a research team from the British Institute of Psychiatry after analyzing data from American Vietnam War veterans.
High IQ sperm more active?
Researchers have found that those who perform better on intelligence tests often have more active sperm. The latest research clearly supports a previous theory that the genes that determine intelligence also have other biological functional effects.
Therefore, any small changes that impair intelligence can harm other aspects of the gene's characteristics, such as sperm quality.
In other words, people with healthy genes are more likely to have what biology calls "fitness factors," which make them healthier and smarter.
What is the relationship between sperm quality and intelligence?
The latest research validates this genetic theory by testing two seemingly unrelated characteristics - intelligence and sperm quality. The results showed that there was a small, but statistically significant, association between the two, indicating that this association was difficult to explain due to unhealthy lifestyle habits such as smoking and drinking.
The study involved 425 men who underwent several intelligence tests and provided semen samples.
Researchers have found that regardless of age and lifestyle, men with higher IQs perform better in three aspects that determine sperm quality - quantity, concentration, and activity.
Is there a small connection between the two in adult men?
A fertility expert from a British university said, "The discovery of a statistical link between intelligence and semen quality in adult men may more explain the degree of co development of the brain and testicles when they are conceived in the mother's womb, and how they can better play a role in adult life. It does not indicate that playing Sudoku puzzles stimulates sperm production to some extent."
In this study, the link between semen quality and intelligence is small, and it is therefore unlikely to have a significant impact on differences in men's intelligence and fertility.