We've always known that food could impact our emotions, whether that's feeling hangry, tired or happy. But did you know there was biomedical research behind these mood swings? 

A new book, The Psychobiotic Revolution, written by UCC scientists, Professor John Cryan and Ted Dinan reveals that our brain health is connected to our gut bacteria. These revelations could help change the way we treat conditions such as depression and anxiety. 

Professor Dinan explains that, "Gut microbiota influences our emotions. We have shown through our trials that people who are clinically depressed have less diversity in the bacteria in their gut than people who are not depressed. The question now is how can we improve the diversity of our bacteria,”

“It proves the theory that a healthy gut is connected to a healthy mind,” says Professor Cryan. He added, “We’re talking about a paradigm shift in relation to how we conceptualise how our brains work. In medicine, traditionally, we tended to compartmentalise systems in the body so if you’re interested in what happens in neuroscience or psychiatry you’re interested in what happens from the neck up.  However, what we are talking about in this book is so very different as we show how bacteria in the gut can influence brain function.”

The book is being heralded as a 'game-changer' and has already sold out in the US.

The Psychobiotic Revolution: Mood, Food, and the New Science of the Gut-Brain Connection  by Scott C. Anderson, John F. Cryan and Ted Dinan, (€22), The National Geographic.