According to British media reports, the latest research results in the UK indicate that men with high intelligence generally have higher sperm quality. This is the conclusion reached by a research team at the British Institute of Psychiatry after analyzing data from American Vietnam War veterans.
High intelligence makes sperm more active?
The researchers found that those who performed better on intelligence test tended to have more active sperm. The latest research clearly supports a previous theory that genes that determine intelligence also have other biological functional effects.
Therefore, any small changes that impair intelligence can pose a threat to other aspects of the gene's characteristics, such as sperm quality.
That is to say, 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 features - intelligence and sperm quality. The results found a small but statistically significant connection between the two, indicating that this connection is difficult to explain due to unhealthy lifestyle habits such as smoking and drinking.
The study involved 425 men who had undergone several intelligence test and provided semen samples.
Researchers have found that men with higher intelligence perform better in determining three aspects of sperm quality - quantity, concentration, and motility - regardless of age and lifestyle.
Is there a small connection between the two in adult men?
A fertility expert from a university in the UK said: 'The discovery of a statistical connection between intelligence and semen quality in adult men may further explain the degree of co development of the brain and testes during pregnancy in the mother's womb, as well as how they better function in adult life. It does not indicate that playing Sudoku puzzle games to some extent stimulates sperm production.'
In this study, the relationship between semen quality and intelligence is minimal, so it is unlikely to have a significant impact on the differences in intelligence and fertility among men.