Schizophrenia has proven biological changes to the brain:
https:// www.ncbi.nlm.nih.gov/pmc/articles/PMC2812015/
It may one day be proven to be induced through chemical or biological means. The MK U scientists know this I’m sure.
Case in point: Charles Whitman
https:// en.m.wikipedia.org/wiki/Charles_Whitman
They actually fought over his brain to autopsy. Very strange backstory to that man.