My research focuses on the microbiota–gut–brain axis, exploring how interactions between the gut microbiome, immune system, metabolism, and the nervous system influence brain function, behaviour, and mental health. My work has contributed to understanding the role of host–microbe interactions in conditions such as depression, stress, anxiety, autism, ageing, and neurodevelopment, with particular interests in microbial metabolites, immune signalling, and molecular mechanisms including microRNAs. More recently, my research has expanded into microbiome-based interventions, psychobiotic diets, and lifestyle factors that can promote brain health and resilience