Gut microbiome composition and diversity are related to human personality traits
Johnson KV-A · Human Microbiome Journal 2020
Observational study · Open access
Key finding
Sociability and social network size correlated with gut microbiome diversity.
In plain language
Found that more socially connected people had more diverse gut communities. Small and observational, but directly relevant to the social question.
How much weight this carries
Real evidence exists, but it is early, limited, or not yet replicated widely.
Cite or read it
Johnson KV-A (2020). Gut microbiome composition and diversity are related to human personality traits. Human Microbiome Journal. https://doi.org/10.1016/j.humic.2019.100069