Migration‑linked height differences

Recent ancient‑DNA studies show that the population movements associated with the formation of Germanic and Celtic regions carried distinct ancestry components, and those ancient ancestry differences correlate with modern polygenic height scores—suggesting some present‑day height gaps may trace to Bronze‑to‑Iron Age migrations. This reframes height differences as partly a legacy of prehistoric demography, not just recent environment or culture. — If migration history helps shape modern polygenic trait distributions, that affects how policymakers, scientists, and media interpret and communicate genetic differences without fueling simplistic or deterministic narratives.