Find a reason for kissing

To kiss find a reason www.thebeijingnews.com · 2007-4-3 10: 53: 40 · source: Beijing News

Why kissing? if someone in such a wonderful activities also in consideration of this issue, and that this person must be a kiss scientist (philematologist).

However, some scientists have discovered that Kiss, this wonderful movement is not as easy as it looks.

10% of people do not Kiss

First, not all people interested in the "Kiss".

For example, South Africa's Satoshi Canadians (Tsonga) in the 1930s the first saw white in the practice of this sport when surprised disgust: "see! these people eat each other! they in saliva!" anthropologist further investigation pointed out that approximately 10% of the total world population of race and don't know what the "Kiss". The camel and ignorant, not in any of the pre-Qin found in the literature on the movement of record-just in Zhouyi "salty" GUA in salt their auxiliary cheek "tongue" description. Considering that documents the researchers generally considered "salty GUA" is a description of the activities, the "salt" of its auxiliary tongue in cheek is likely just one step, rather than the separate parts. Although the appearance of large numbers of the Ming and Qing novels such as the "little smile spit sweet salivary tongue" text, as between the two thousand years of history, this West exchange considers the "Kiss" camel is an import.

From the mother's memory

Part of the Kiss, audiologist will kiss is an acquired behavior — is learning.

When we don't have long teeth, my mother to chew food, with mouth to feed it to us. So we will which lips pleasure with escape from hunger, even if we can chew still can't forget. This is quite the Freudian runaround. But this interpretation doubt many, such as the "mother's Kiss" is clear and another Kiss very different. Moreover, it cannot explain why over 10% of people do not Kiss this concept.

There

are kisses scientist are trying to angle from Physiology to reveal the essence of the kiss. They found that Kiss probably and smell (the Chinese "Kiss" and "smell" is sounds like). It has long been found, in addition to the human sense of smell than the many animal social behavior, particularly reproductive behavioural played a most important role. They divide through smell, determine whether each site the rut, and even pick the spouse.

Look for different users

Animals have a group called MHC genes, histocompatibility complex gene.

The reason why that name, because the two have similar individual MHC between organ transplantation, are more likely to succeed; otherwise it is not likely to succeed. The farther away the blood relationship, the greater the difference between MHC. In 1996, the United States biologist zuiverloon (WilliamFurlow) found that mice will select those differences with their MHC larger specific mating. The same year Richardson had a research team in another pilot, he put some different men through the t-shirts to different female volunteers, let them pick out those that are "feeling up". Results for "feel good" is a t-shirt with their MHC differences larger men through. While those differences with their MHC is not a big man, let them think of their fathers.

Compared to most of the animals, the human part of the brain responsible for the sense of smell because they were responsible for intelligence section of extrusion and become very small, which makes human sense of smell become very slow.

We imagine such a scenario, two live in cold areas of primitive man: a man and a woman. Two man, some discharge, big nose, trying to find other information about MHC. But both of them cover a thick fur coat, which makes them only smell saw bear the smell of leather and chamois leather. They are increasingly close to the nose towards each other only exposed in the face and facial maximum odor source is the estuary. The distance between two individuals getting closer, a great movement was born!

Eskimo Kiss

This is not difficult to explain why in warm regions of Cong and people do not know what kiss.

Because their body bare area larger, and warm air contribute to spreading their scent. And "mother's Kiss" feeling can be explained by the mother to her child a very similar to the smell of MHC, told "baby don't worry, you're not alone. " So that the child comfort.

There is also a support, our relatives, with us to yellow ethnic Inuit (that is, in the past said Eskimos), tens of thousands of years ago and moved to live near the Arctic Circle, cold climate "forcing" they developed a special Kiss — Eskimo Kiss, Kiss does not only need the lips of contact, but also with the nose.

So the next time some Inuit friends on your lips suction, don't be surprised, that is he looking for your information about MHC.

□ Lean camel (Shandong biology researchers)