At the turn of the century in the early 1900s we were nuking babies' thyroids cause the only corpses they could find had diseased thyroids and the healthy babie

At the turn of the century in the early 1900s we were nuking babies' thyroids cause the only corpses they could find had diseased thyroids and the healthy babies had them. So obviously something must be wrong. There's always value in the counter example to see where our processes breakdown and fail. What we learn tomorrow in how abnormal our bodies are from another?