The secret to ageing well could rest within your gut, which scientists now know plays a crucial role in important body systems, including immunity, metabolism and even how happy we can feel. Greek physician Hippocrates gave us the heads up around 320BC when he said all disease begins in the gut. If only we’d taken his word for it. The good news is that science has caught up, and we now know that our gut microbiome – a term that describes the trillions of bacteria and microbes that live there – plays a crucial role in our health and sense of wellbeing. “The depth of the microbiota is hard to fathom,” says gastroenterologist Dr Will Bulsiewicz. “The numbers are so astronomical… and it’s a wondrous magical community with amazing healing powers.” Even better, it’s possible to change the health of your gut
