I read this in an article of The Atlantic:
We walk into a pitch-black, freezing-cold building and discover there are youngsters lurking about—they’re tiny, but older, something weird, like trolls, filthy, stinking. We open a door and find a population of ‘cretins’—now it’s known as congenital iodine deficiency syndrome; untreated hypothyroidism stunts growth and brain development. There were children with underlying genetic disorders lying in cages. You start almost to disassociate.