Your gut is astonishingly clever. It contains millions of neurons - as many as you would find in the brain of a cat - and is home to the microbiome, an army of microbes that influences your mood, weight and immune system. In this book, Dr Michael Mosley takes us on a revelatory journey through the gut. A must read for all parents who want to understand the importance of good gut health in their children. This humorous, easy to read book has the potential to change a lot of lives.