Human Emotions are NOT a product of genetic pre dispositions. Down that road lies Eugenics. We have Already traveled it, and we're Long overdue to get Off of it. Just as there Is NO Schizophrenia gene, there is NO PTSD gene, but we have $igh-entists 'Investigating' Human Twins as Very well paid, public funded make work.
'Mental Health': It Never runs out of specious excuses to Pay itself.
"But if we can Save just One Person!" We've Heard that one already.
It's time to cut off the money for Junk Research into Non Diseases.