Stress makes the way to choose a partner change

Men often choose women who have a face similar to them for long-term sexual relations, but men who live in a stressful state do not.

Photo: essentialtrainingworkshops.com.

Many previous studies prove that people tend to choose people who are more like them, especially faces.

Livescience said scientists from Trier University in Germany recruited 50 men to perform a test of differences in how to choose male partners in a state of stress and normal. All these people are in their twenties, have a well-proportioned and healthy figure. Volunteers were divided into two groups, in which one group had to immerse themselves in the water that was about to freeze to create a sense of tension, and the other group immersed their hands in warm water.

The team analyzed cortisol levels - a hormone related to stress - in the saliva of all volunteers to determine stress levels.

Experts attach electrodes to the volunteer's head to measure the movements of tiny muscles around the eyes as they look at objects. They then asked each guy to look at 40 computer-generated girls photos, of which 30 were nude.

While the volunteers looked at the photos, the team monitored the movements of the muscles around the eyes. Finally they asked volunteers to choose the female face they liked the most.

The results showed that the majority of male groups who were immersed in warm water chose girls with faces like them. On the contrary, the group who dipped their hands in cold water liked those with different faces from them.

The team thinks that, in everyday life, stressed men have a different way of choosing partners than men. Initially, they also noticed women with faces similar to them, but gradually their interest decreased.

Johanna Lass-Hennemann, the leader of the research team, acts to select male partners in a stressful state involving efforts to optimize fertility. Some previous research has shown that we always feel people who have the same face are more reliable than the rest of humanity. That explains why men tend to stick with long-term feelings for women who have similarities to their faces.

Even so, scientists have found plenty of evidence that men with stressful lives often have more brief sexual relationships than other men. The more partners, the greater the ability to spread the gene. Because stressed men do not want to stick with women for a long time, they do not want to choose women with faces like them.