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Why do people touch each other all the time? Sex among holobionts

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Nowadays, we are encouraged to exterminate our skin microbiome by means of various poisonous substances. But this is not a good idea. We are holobionts, and our microbiome is part of us. If we kill the microbiome, we kill ourselves. Touching each other is a way to keep our microbiome alive, it is a form of sex ("holosex") intended as a form of communication.  The lady in this picture seems to understand the point, at least judging from her unhappy expression. (see also the "proud holobionts" group on Facebook)Humans tend to touch each other. They hug, pat, rub, kiss, cuddle, clutch, caress, clasp, embrace, each other a lot. Think of the kissing habits ("la bise") that's typical of the French society, it is done also in Italy and in other Latin countries. In most societies (*), at least some kind of skin contact is supposed to be a sign of reciprocal trust and confidence.But, today, we are seeing a completely different pattern diffusing all over the world. With the coronavirus epidemic, people are not shaking hands anymore, to say nothing about kissing and hugging each other. Not only people don't want to touch other people, but they are also positively scared of getting close to each other. It is called "social distancing" and it involves a series of ritualized behaviors of dubious efficacy against the epidemic that include wearing face masks, sanitizing one's hands, spraying disinfectants all over people and things, raising plexiglass barriers, and more. So, what's happening? Is social distancing just a temporary need or something that will last in the future? The answer depends on whether skin contact is useful for something: if it is not, we could as well abandon it, apart from strictly reproductive needs. But why do people touch each other? For one thing, we may be reasonably sure that if touching each other were harmful to us, natural selection would have eliminated this behavior from our genetic pool and from our cultural habits. On the contrary,. . .

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News source: Cassandra's Legacy

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