The role of microbiome in humans’ physical and mental health, and their social relations and the effects of the Covid-19 pandemic on it

By adding detailed scientific data together, more general images can be drawn. These more general images are themselves fallible models that can, of course, better represent a picture of the future than blind conjectures. In the present article, a series of empirical findings are put together to defend the claim that "the Covid-19 pandemic, by speed up the changes that are taking place in the human microbiome (= the collection of all microbes that take part in symbiosis with human), has intense effects on human physical and mental health, emotions and cognition, and social relationships." This is the main argument of the article in defending this claim. The composition of the microbiome affects physical and mental health, emotions and cognition, and human social relationships, and therefore a change in the microbiome leads to a change in these aspects. The microbiome has changed over the course of human evolution, and this trend has accelerated in the last two centuries. The Covid-19 pandemic could bring about more changes in the human microbiome. In support of the premise, some have been selected and presented from the mass of data.