Human intestines are home to more than a trillion microbes, of about 1000 species, weighing more than 2 kgs. These microbes are intricately related to the functions of not only the intestinal tract, but also of every organ in the body, particularly the nervous system, endocrinal system, immune system and several metabolic pathways. Modern diet and lifestyle, and also use of medications, are affecting the quantity, quality and functioning of these microbes. Recent studies have revealed interesting facts about the relationships between gut microbes and human diseases, of the body and the mind.
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