"
[Here's a paper from 1997 suggesting that evil is a disease":](https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(97)09385-9/fulltext).
And [a paper from 2005 suggesting that death is a disease](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1369280/).