Looks like smart men really are the sexiest. Psychologists have discovered that men with higher IQ levels have the healthiest sperm.
This could explain why men who are smart and have a good sense of humor may come across as a signal to women looking for a partner with healthy genes.
The study conducted by psychologist Professor Geoffrey Miller from the University of New Mexico, tested 400 War veterans. They were put through sperm tests as well as a range of intelligence tests. The results showed that the men who scored the highest in the intelligence tests also showed the highest counts of healthy sperm.
Those with lower IQ scores had fewer and less robust sperm.
There are also experimental findings that will be presented by Dr Freya Harrison, of the University of Bath, which show that men who display more selfless behaviors were considered more attractive to women as possible long-term partners and in a smaller minority, for “flings”.
Professor Miller believes that sperm quality was directly related to brain quality.
The two traits could have evolved together as a way to advertise good genes, he said.
He believes a number of human traits – including language, intelligence, humour and selflessness – may have evolved because they are attractive to the opposite sex.
Describing his theory, Professor Miller, said: “Traits such as language, humour, and intelligence evolved in both sexes, because they were sexually attractive to both sexes.”
“Selflessness makes men of otherwise low to moderate attractiveness sexier, but not men who were already considered very attractive,” she said.
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