The new frontier of medical science is closer than you think – much closer. It lies within us, in the bacteria and viruses of the gut, and in the mysterious efficacy of faecal transplants.

There’s so much hype in health journalism. But the study of the gut microbiome – the universe of bacteria living in our intestine – really is opening up a new age in our understanding of the human body that promises to unlock revolutions in drugs and healthcare, food and nutrition, wellbeing and even happiness.

James Harding, editor and co-founder of Tortoise, spoke to James Kinross, a researcher and consultant colorectal surgeon - one of our leading gut scientists

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