INTERESANTE

22/04/2020

. Why do we tend to tilt our heads to the right when we kiss on the mouth?
.
Image copyright Getty Images Image caption Image caption 79% of men initiated kisses during the experiment
The excitement of the moment may overwhelm you, but have you ever noticed which way you tilt your head when you kiss someone on the lips?
Chances are you are going to the right.
And if you are a man, it is very possible that it was you who took the initiative to kiss.
This is the conclusion of a study carried out by psychologists and neuroscientists from the Universities of Dhaka, in Bangladesh and those of Bath and Bath Spa, in the United Kingdom, which analyzed this behavior in 48 couples from Bangladesh.
The researchers chose this country - where this behavior is not observed in public and is censored on TV and in the cinema - to rule out the influence of cultural factors, and to compare the evidence with studies on the subject in the western world.
If your partner is left-handed ...
After asking couples to kiss privately and complete a form without consulting each other, the researchers noted a trend to the right (both in the lead person and the recipient) and that the men gave the first I spend 15 times more than women.
Image copyright Getty Images Image caption The person who receives the kiss adjusts to the movement of the person who initiates it
Of the total, two thirds twisted their heads to the right.
The researchers were able to predict which way they would go depending on whether the person initiating the action was left or right handed.
And, the side that it chose, indicated for which the receiver would do it.
That is, the container follows the one that promotes the action to avoid a mirror movement, which, according to the study subjects, produced a feeling of discomfort for both.
"This is the first study to show gender differences in kiss initiation (...) and how the direction taken by the initiator's head tends to modulate the direction of movement of the kiss container," said Rezaul Karim, researcher at the University of Dhaka and lead author of the study.
Two hemispheres
But why do we do it like this? According to the researchers, our brain is programmed for it. The act of kissing is determined by how the brain divides tasks into hemispheres.
Behavior is linked to how our brain divides tasks by hemisphere.
According to the study, it is possible that different hormonal levels (such as the level of testosterone) and neurotransmitters (such as dopamine) distributed in each hemisphere, generate a tendency to turn to the right.
"This study is unique in that it shows us private behavior ... that has implications for everyone," added Michael Proulx, a scientist at the University of Bath.
"Previous research could not rule out cultural influence because the study subjects were western. But it turns out that humans are similar even though our social values differ," the researcher concluded.