Men with high testosterone levels ‘more likely to have multiple wives’

London, Aug 28 (ANI): Men with high testosterone levels are more likely to have multiple wives, according to a new study.

They also give less attention to their kids.

High testosterone levels have been linked to increased sexual activity, infidelity and marital conflict. However, after men become fathers, their bodies typically pump out less of the hormone.

“This is good for us, so we can adapt to social challenges very quickly,” New Scientist quoted Alexandra Alvergne, an anthropologist at the University of Montpellier, France, and the University of Sheffield, UK, who led the new study, as saying.

In the study involving rural Senegalese villagers, the researchers underscored testosterone’s critical role in a mating and parenting.

Lead researcher Alexandra Alvergne, an anthropologist at the University of Montpellier, France, and the University of Sheffield, UK measured testosterone levels in 21 polygynous fathers as well as 32 monogamous dads and 28 unmarried men without children.

The researchers also asked the men’s wives about the time and money their husband spent to the family.

The findings revealed that no matter how many wives they had, fathers had lower testosterone levels than single men, on average.

It also showed that among fathers, those with more testosterone tended to invest less time in their wives and children.

And polygynous men under the age of 50 produced more testosterone than monogamous men, on average.

According to Alvergne, older men with more than one wife made less of the sex hormone than other men. While older men may make less testosterone, they typically enjoy more prestige in their villages, which could make it easier to find multiple wives.

The study appears in journal Hormones and Behavior. (ANI)

‘Love hormone’ makes strangers look attractive

London, Apr 10 (ANI): The so-called ‘love hormone’ oxytocin, which is linked to a mother’s tender feelings for her child and long-term devotion between partners, can play a crucial role in picking Mr (or Ms) Right, say researchers.

A new study has found that men and women who smell a whiff of oxytocin rate strangers as more attractive.

When oxytocin courses through our blood, “we are more likely to see people we don’t know in a more positive light,” says Angeliki Theodoridou, a psychologist at the University of Bristol, UK, and the study’s lead researcher.

To reach the conclusion, scientists tested 96 men and women in a double-blind placebo-controlled trial, reports New Scientist.

After participants got either a spritz of oxytocin or a placebo, they rated pictures of 48 men and women for attractiveness and 30 for trustworthiness. Her team also tested for mood.

Following the procedure, researchers found that volunteers who received oxytocin rated male and female strangers as both more attractive and trusting.

Researchers did not examine how oxytocin could affect social judgements, but Theodoridou speculates that the hormone dampens brain activity in a region involved in processing fearful emotions, called the amygdala.

Although Theodoridou’s study shows that oxytocin acts similarly on men and women when rating strangers, sex differences could emerge in real-world situations, says Jennifer Bartz, a psychologist at Mount Sinai Medical School in New York.

The study has been published in the journal Hormones and Behavior. (ANI)