Again more evidence supporting the tremendous role of the gut biome in maintaing physical as well as mental health. “The emerging concept of the gut microbiome as a key regulator of brain and behavior represents a paradigm shift in neuroscience. Precise targeting of the microbiome-gut-brain axis with psychobiotics — live microorganisms with a potential mental health benefit — is a novel approach for the management of stress-related conditions,” the authors of the study repot.
In this small study, 22 participants took a probiotic strain of Bifidobacterium longum daily for 4 weeks versus a placebo pill. Participants taking the probiotic lead to a decrease in anxiety, cortisol levels (a known stress hormone), improved performance on a visual memory task, as well as notable changes measured in brain activity on EEG.