Dear Dr Randy

I think u can have valuable insight from the link

Psychopathic personality traits: heritability and genetic overlap with internalizing and externalizing psychopathology

Article Psychopathic personality traits: Heritability and genetic ov...

thanks.

ajit

Several candidate genes have been identified to be associated with antisocial behavior or their known risk factors.

Many of these candidate genes findings have also been replicated in both human and animal studies.

A majority of these candidate genes were identified through examination of

-1) the dopamine system, which is involved in mood, motivation and reward, arousal, and other behaviors;

-2) the serotonin system, which is involved in impulse control, affect regulation, sleep, and appetite;

-3) the epinephrine/norepinephrine system, which facilitate fight-or-flight reactions and autonomic nervous system activity (Bartels et al., 2011).

All three of these systems are affected by monoamine oxidase A (MAO-A) function.

Yes it is quit possible as many psychiatric diseases run in families.

Thanks dr Oleg

mant thanks dr Yehya