We do this because, we know the value of मूलाधार (GUT in modern medical science terms). We also know impact of focused mind on the well-being of Body.

Microbes are nothing but loosely-coupled manifestation of प्राण (here प्राण@मूलाधार ) in contrast to body-cells who are tightly coupled as organs.

One more study praising importance of microbes (i.e. प्राण => हनुमान, गणेश, मारुति i.e. driving force behind microbes population protection and control )

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“Obesity is linked to changes in our gut microbes — the trillions of tiny organisms that inhabit our intestines.

“Taken together these experiments demonstrate a causal link between alterations in the gut microbiota in response to changes in the diet and increased acetate production,” said Shulman. The increased acetate in turn leads to increased food intake, setting off a positive feedback loop that drives obesity and insulin resistance, he explained.

The study authors suggest that this positive feedback loop may have served an important role in evolution, by prompting animals to fatten up when they stumbled across calorically dense food in times of food scarcity.

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Research

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Study reveals how altered gut microbes cause obesity

http://news.yale.edu/2016/06/08/study-reveals-how-altered-gut-microbes-cause-obesity

“Alterations in the gut microbiota are associated with obesity and the metabolic syndrome in both humans and rodents,” Shulman noted. “In this study we provide a novel mechanism to explain this biological phenomenon in rodents, and we are now examining whether this mechanism translates to humans.”