Monday, August 3, 2020

Analysing the Kissing Paradox – Why Do Humans Kiss?

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Analysing the Kissing Paradox – Why Do Humans Kiss? 5
Nupur Chowdhury
An eccentric writer of quirky tales, who likes reading, writing, talking, shopping and singing tunelessly in the shower.

Why do we kiss?

Analysing the Kissing Paradox – Why Do Humans Kiss? 1

It is a million dollar question. I mean sure, in the modern age, kissing is widely perceived as a manifestation of love and passion. It is an expression of devotion.

But was this always the case? I mean if you think about it logically, in all honestly, kissing is kind of…gross!

Without the cultural associations of love and warmth that we equate with a kiss, what really is so great about sucking vampirically on another person’s lips, or even having a tongue thrust down your throat? Best case scenario it would be a mildly uncomfortable experience, worst case scenario you could get saliva-borne pathogens injected into your system.

So again, the question arises, given the apparent risks of the practice, why do we enjoy kissing so much?

Well, there are probably several biologically valid reasons for the evolution of kissing among early humans. However, one of the most pertinent reasons can be still observed in birds.

The mother connection

Analysing the Kissing Paradox – Why Do Humans Kiss? 2

Mouth-to-mouth contact among humans is associated with expressions of love and trust, just as it is in other forms of life. Mother birds feed their children by putting the food into their mouths, chewing on it, and then regurgitating said chewed food into the baby’s mouth directly for it to swallow. Sure, to us this may seem kinda gross, but biologically it makes perfect sense as a child-rearing technique.

Babies have not yet developed the biological faculties that we need to fully chew and swallow our food. They do not yet have fully formed teeth or saliva-producing glands. Swallowing un-chewed food is injurious to health. In such a scenario, in the absence of modern pre-packaged baby formula, what is a mother to do, but to chew the baby’s food for it? Mouth-to-mouth feeding is observed not only in birds but in various kinds of mammals as well, including apes.

Surprisingly, this practice was also quite popular amongst humans before the advent of baby-formula. To wean their babies from breast milk, mothers would often chew solid food, grinding it down in their mouths before transferring it to the baby’s mouth directly.

While this isn’t the healthiest practice due to the possible transfer of pathogens from the mother to the child through saliva sharing, a healthy mother can actually help the child’s development by chewing its food for it. The presence of adult saliva helps in the faster digestion of food and the transfer of many essential minerals like zinc that aren’t present in breast milk.

This cultural and psychological association of mouth-to-mouth contact with love, comfort and nourishment has probably played a role in elevating a kiss to the position it now holds in our society.

The taste-testing theory

Analysing the Kissing Paradox – Why Do Humans Kiss? 3

Another theory involves the prevalence of something called ‘taste-testing’. According to this theory, we can subconsciously tell the health and well-being of a potential mate through the taste of their saliva. Now whether this is true or not, I cannot tell you. But it certainly seems like an interesting theory. If this were true, those of our ancestors who were better at kissing, selected better mates and were able to reproduce more often, leading to the widespread acceptance of kissing as a mate-selection technique.

Well, whatever be the origins of the kiss, we cannot deny that it is one hell of an enjoyable activity! So instead of reading online articles about kissing, go out and kiss someone you love right now.

Analysing the Kissing Paradox – Why Do Humans Kiss? 4

Happy Kissing!!! 😀

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