Lifting weights just two or three times a week can significantly change the trillions of bacteria living in your gut, and it might happen in as little as eight weeks. That’s according to a recent study – not yet peer-reviewed – finding that previously inactive people who began resistance training showed notable changes in their gut microbiome, the community of microbes living in the digestive system. Your gut is home to bacteria, fungi, viruses and other microscopic organisms, most of which live in the large intestine.
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