Irreversible DamageUntil just a few years ago, gender dysphoriasevere discomfort in one's biological sexwas vanishingly rare. It was typically found in less than 0. 01 percent of the population, emerged in early childhood, and afflicted males almost exclusively. But today, whole groups of female friends in colleges and secondary schools across the world are coming out as 'transgender'. These are girls who had never experienced any discomfort in their biological sex