Can the bacteria in your gut shape how you think?
Paper: Signalling cognition: the gut microbiota and hypothalamic-pituitary-adrenal axis
Rusch et al. · Frontiers in Endocrinology 2023 · doi.org/10.3389/fendo.2023.1130689
What the trailer says
Can the bacteria in your gut shape how you think? Researchers reviewed studies linking gut bacteria, stress and thinking. Mice raised without gut bacteria reacted more strongly to stress and had memory problems. One large study followed 14,542 people. Long-term antibiotic use in midlife was linked to weaker thinking later, like three extra years of aging. Most evidence comes from animals, and many probiotic trials found no clear effect. Whether gut bacteria cause these changes in people remains unproven.