Bullies intimidate people they see as weak or vulnerable

Bullying, for example, is 70% heritable

Photo by Kat J on Unsplash

There is an inter-generational continuity of personality disorders as bullying and narcissism. Maybe bullies grow up to become narcissists?

Both personalities are somewhat genetically predestined and heritable. Bullying is 70% heritable. Twin studies are a gold standard of…