Arctic Winters Shaped Personality Genes

The piece argues that long‑term survival in cold, highly seasonal ecologies selected for lower Extraversion and Neuroticism and higher Agreeableness. It operationalizes this by predicting latitude‑linked signals in Big Five polygenic scores using ancient and modern DNA, and cites Inuit food‑sharing as behavioral corroboration. — If climate‑driven selection shaped population differences in personality, debates over culture, migration, and inequality would need to grapple with contentious gene–environment histories rather than purely contemporary explanations.