Why do we tend to tilt our heads to the right when kissing?

Recently, the British media summarized some of the latest research from various countries and revealed the mysteries of kissing to us.

Human lips are unique

Among all living creatures, humans have unique and special lips. Because human lips are turned outward, the red part can be seen, making them more sexy and sensitive. But humans aren’t the only ones who kiss.

Orangutans also press their lips together to express excitement, affection, or reconciliation.

Kissing makes pupils dilate

A passionate kiss can cause a person to secrete a variety of substances, causing the pupils to dilate and the eyes to become affectionate.

The more we kiss, the closer we become

Behavioral neurobiologist at Lafayette College in Pennsylvania It was found that kissing can produce oxytocin, which can make people feel attached and close.

2/3 of people lean to the right when kissing

Psychologist Onur of Ruhr University in Bochum, Germany, points out that two-thirds of people tilt their heads to the right when kissing, a behavior that may reflect a preference for head rotation in infancy or even in the fetal stage.

Men love French kissing

Evolutionary psychologists have found that men prefer French kissing more than women. A man's saliva contains testosterone, which can be passed on to his partner. Over time, this exchange of saliva can increase a woman's sexual desire and make her more receptive to sex.

Women care more about breath

Scientists have found that when kissing, women pay much more attention to their partner's breath and teeth than men do.