We think about 57% of you is your microbiome, a complex network of microorganisms that lives, most notably, in your gut. In this week's episode, we talk about being born without bacteria, why yoghurt is good for you, how obesity and mental health are linked to the microbiome, how yours compares to your family's, faecal transplants, and challenges for the microbiome that lie ahead. [NOTE: We're aware of the bad audio quality and are working on improving it for further podcasts! Thank you for your support.]