Whether it’s your first or your thousandth kiss, you always want to have more of it. Though many of us believe kissing as something that induces a sense of euphoria, there are others who want to know the reason as to why do we exchange saliva and what we gain when we have a taste of the lipstick of a girl.
Other than the most basic answer that people kiss simply because it feels good, for those of you for whom this explanation is not sufficient, we have tried to comprehensively explain the science and history behind a kiss after the break.
- Kissing is Learned:
There are a few scientists who believe that the passionate lip-lock is a learned behavior, which dates back to the early human ancestors. During that time, since there were no mixers and grinders to make food consumable by small kids with no teeth, mothers simply chewed food in their own mouths and passed it from their mouths to the kid’s mouths. This practice continued even when babies had their teeth and then it was taken as a way to comfort them.
- Kissing is instinctual:
Others believe that kissing is not a learned but an instinctual behavior. The supports of this group say that other than humans there is no dearth of species in the animal kingdom that rub their noses or kiss each other as a gesture of affection. Certain animals do it to make up after fights, comfort each other and develop social relations.
- The scientific reason:
The most accepted theory that answers why do people kiss each other states that it helps us sniff out a quality mate as it helps exchanging biological information about whether or not the two people will make a strong offspring. Women are known to prefer the scent of men whose genes for certain immune system proteins are different from their own. Once such kind of people make out, the result will be an offspring that gets more immune system proteins and hence better immunity for better chances of survival.
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