Parasites like Toxoplasma gondii and others can affect behaviour
-suicidal thoughts
-promiscuity
-impulsive and reckless behaviour Dr.s have found organs from deceased motorcycle riders have a much higher rate of toxoplasmosis than the general population, for example.
-schizophrenia is also linked to toxoplasmosis (crazy cat lady-Vance)
Could parasites be a sort of antenna from which demons can control the mind?
Check out this presentation that pulls from science, biblical texts, and current events.
https://youtu.be/1iQF5xv7PXE