By Hugo Francisco de Souza Reviewed by Susha Cheriyedath, M.Sc. Jul 1 2025 As humanity prepares for Mars, new research reveals that safeguarding astronaut mental health means targeting the gut, where the battle for resilience in space truly begins. Review: Navigating mental health in space: gut–brain axis and microbiome dynamics . Image Credit: Frame Stock Footage / Shutterstock In a recent review in the journal Experimental & Molecular Medicine , researchers collate and discuss more than 150