大象传媒

We are a teeming mass of interconnected microbes and the impact of this microscopic universe on our health, our minds, even our moods, is profound.

Made in collaboration with Wellcome Collection, Claudia Hammond speaks to neuroscientist Professor John Cryan from University College Cork in Ireland, about the link between our gut and our brain and whether the microbes found in our gut can affect how we experience stress.

(Image: Scanning electron micrograph (SEM) of bacteria cultured from a sample of human faeces. Credit: Steve Gschmeissner/Science Photo Library/Getty Images)