Prelude to a sexual relationship and how we choose a partner: the science of kissing in the mouth

Kisses are as old as humanity itself; there are pictures before the Egyptians where people are represented embracing, the action that is going on around the 90% of cultures around the world.

The frequency with which couples join their lips is related to the satisfaction they feel in their relationship. There are so many sensations that cause a kiss in the mouthwho have received different awards biological functions.

Ignacio Camacho, University of the National Autonomous University of Mexico (UNAM), explained that it could act from the Prelude to a badual relationship, but also to the selection of a couple.

Its importance in affective relationships has a lot to do with the sensitivity of the lips, 100 times larger than that of the fingers. The lips are areas of the body with more representation in the cerebral cortexand this is related to the importance they have in the phono-articulator system, involved in the verbal communication

Therefore, every time we give a kiss, changes can occur in different parts of the brain, related to satisfaction, attachment, emotions and even badual awakening.

He added that the sensations and emotions generated by a kiss are so much fun that it is natural to want to repeat such a sensation. "By joining our lips to those of someone elsein our brain some neurotransmitters linked to pleasure are releasedas well as molecules called opioid peptides and other substances that are very important for attachment, such as oxytocin and vasopressin, "he explained.

The kisses; key to choosing a couple and being happy

It does not matter if you have been with your partner for a few weeks or more than 20 years, kisses have a very important function in every sentimental relationship.

Camacho explained that when we meet someone, the first kisses are fundamental, especially for women. "And that could be because the act of kissing might be related to the selection of the couple"

The various substances present in saliva, such as the hormones and proteins involved in the immune response, they are detected by the other person in a way that is still unknown; and that might lead you to think that Your partner is able to maintain a relationship involving procreation.

In addition to the taste part, there is a olfactory part which is also relevant at the time of the kiss, given the approach that occurs between the two bodies. This is a time when various taste and smell stimuli, which generate different answers in our organization

Kisses have a different connotation when they are only intended excite the other person to hold a shot of one nightonly when you want a long term. In addition, it was determined that the frequency of kissing is greater before badual intercourseand decreases during and after.

In some cases it has also been found that The first kiss is more important than the first badual encounter. After kissing someone the first time, they can change the attraction settings, and that can increase or decrease.

Kissing is just as important for those couples who have a lot of time togetherbecause it has the sense of strengthening of sentimental ties. In fact, a kiss could be more important than even bad

"Many times, they stop having this approach because they are no longer happy; although this can also be a cultural problem, to think that after many years It may be corny to continue to kiss"he explained.

Benefits for the body

In general, kisses can be beneficial for the body. In Japan – a country where people do not kiss often in the mouth– Studies have been conducted on people with allergies, such as rhinitis. "They take blood samples, they put music on it, they kiss for half an hour, then they take blood again, where the molecules involved in the allergies decrease, so it seems that kissing is a good relaxing and an alternative to allergies"said the scientist of UNAM.

This result may be due to the fact that the emotions at the level of the central nervous system are reflected in other systems, such as the endocrine and immunological system. "It's not just because of the elements of saliva, but because they can be given changes in the brain this impact on this beneficial response ".

He acknowledged that, despite what we know about kisses, there is still unknown aspects, like what are the changes at the neurophysiological or neuroendocrine level. Until now, the study models are mainly based on questionnaires or presentation of images for people to express what they feel or think; the hormones in blood samples. It's actually a complex phenomenon.

But kissing in the mouth can also have a negative part, because infections can be transmitted by saliva (caused by viruses or bacteria) such as influenza, mononucleosis (also called kissing disease) and other types of herpes. In each kiss, you can transmit hundreds viruses and bacteriahe warned.

However, kissing someone is a sign of attachment, have a feeling for the other person and want to be with hersaid the expert in studying the effects and mechanisms of action of bad hormones, and their role in badual behavior in animal models.

This is to be taken into account that "the sensations that the kiss produces are universal"He concluded.