The kiss also shows whether the relationship can work or not (Image source: Reproduction / CNN)

It is a fact that the human being has the strong instinct to want to connect with another person through kissing, an act that has different styles shaped by customs and personal experiences. What few know are the effects that this simple action can have. In the physical plane alone, the kiss involves 5 of the 12 cranial nerves and still carries electrical impulses to 4 parts of the body: brain, lips, tongue and skin.

In addition, the kiss is also a potent cocktail of chemical messengers in the body. According to CNN, scientists have found that a passionate kiss can be addictive, acting like a drug in our system. All of this is because kissing releases dopamine, a substance also found in symptoms caused by illegal drugs such as cocaine.

Dopamine involves the feeling of reward and makes us feel euphoria, insomnia and even loss of appetite. This is why a passion can be so addictive.

The kiss and the nose define the relationship

Your way of kissing is also a litmus test as to whether the relationship can work or not. Psychologists at New York State University in Albany reported that in one survey, 59% of men and 66% of women said they had already broken up because of a bad kiss.

Besides the mouth, another organ of great importance in our judgment is the nose. Incredibly, from a specific smell - not just bad breath - we can define the fate of the relationship. This is because each person has a distinct natural scent that helps us search for a partner with compatible DNA.

Researchers also found that unconsciously women are more attracted to men who exude a scent with a set of genes that complement their immune systems. Thinking ahead, if they had children, it would mean that children would be born stronger against disease.