Genetic Factors Account for Half of Narcissism, Study Finds

10 articles · Updated · PsyPost · Apr 28

A German TwinLife study of 6,715 twins and family members led by Mitja D. Back reveals that 50% of narcissistic traits are inherited genetically, not shaped by parenting styles.
The remaining variation in narcissism stems from unique individual experiences outside the home, with shared family environment having almost no effect. Identical twins showed much greater similarity than fraternal twins, underscoring the genetic influence.
These findings challenge longstanding theories blaming parenting for narcissism and suggest psychologists should focus on peer, romantic, and workplace influences, as well as the biological mechanisms underlying these traits.

Your genes may decide if you're a narcissist, but what life events will actually trigger it?

Does an evolutionary drive for status explain why narcissistic genes are so common today?

If parenting doesn't cause narcissism, are we powerless against our children developing it?

Narcissists lack self-awareness, so can we trust a study where they rated themselves?

Is social media creating the perfect storm for a genetically-driven narcissism epidemic?

With narcissism rooted in biology, should we rethink accountability for narcissistic abuse?