Swedish "Resignation Syndrome" (1990s-2016)

In Sweden, a mysterious illness known as "resignation syndrome" affected children of asylum-seekers, causing complete withdrawal and rendering them unable to open their eyes, speak, or walk. Medical experts were baffled for over two decades, with Dr. Elisabeth Hultcrantz explaining the condition as a response to the world's overwhelming terribleness. Resignation syndrome, first reported in the 1990s, saw over 400 cases from 2003 to 2005, though the National Board of Health noted a decrease to 169 cases in 2016.