Kissing is an art, but it also has its own science. Is namedfilematology, and the latest research in this discipline reveals that exchanging saliva helps us choose the most suitable partner.
As explained by neuroscientist Wendy Hill during a recent meeting of the American Association for the Advancement of Science (AAAS), lthe chemicals in salivathey help us toevaluate a potential partnerto decide if it is the most suitable. In addition, kissing reduces the levels ofcortisol, the stress hormone, and increases the levels ofoxytocinAs long as we kiss the right person.
Helen Fisher, professor of anthropology at Rutger University and a world expert in the biology of love, has also analyzed the role of the kiss, and assures that “bigis a powerfuladaptation mechanismn “present in more than 90% of human societies. Without forgetting, he adds, that” chimpanzees and bonobos kiss, foxes lick each other’s snouts, birds peck and elephants put their trunks in their mouths. from the other members of their packs. “
In humans,kissis fundamentally achemical question, according to Fisher. Male saliva hastestosteroneand men prefer wet kisses because “unconsciously they try to transfer testosterone to provoke sexual appetite in women,” according to the expert. In addition, this type of kissing could help them to “measure the levels ofestrogensfeminine values of your partner, to get an idea of their degree of fertility. “As for women, the kiss helps them to detect the state of the immune system of their potential partner and to know” how well you take care of yourself. “
On the other hand, the anthropologist maintains that there are three different brain systems that evolved in thehomo sapiensto allow pairing and playback. The first is thesexual desirepowered bytestosterone, Both men and women. The second regulates thepassionate or obsessive loveand seems to be linked to aelevated activity of thedopamine, a natural stimulant. The third, who controls theattachmentand allows a couple to stay together long enough to raise children, is tied to a higher level ofoxytocin. The kiss probably allows all three systems to be stimulated, Fisher concludes.
