#Crime

A major study published in a respected science journal maps where people with so-called “dark” personality traits—such as psychopathy, narcissism, and everyday sadism—are most likely to live. The research ties these traits to broader social factors like poverty, inequality, and violence. Data drawn from millions of individuals across many countries show how environment and society can influence personality development, offering new guidance for policymakers and health professionals alike.

The project, led by a team including a prominent personality psychologist from a leading European university, goes beyond sensational depictions of deviant traits. It highlights the real-world conditions where dark personalities tend to cluster and how policies addressing social gaps may reduce these patterns over time.

A striking new study published in PNAS has mapped where people with so-called “dark” personality traits—such as psychopathy, narcissism, and everyday sadism—are most likely to reside, linking these traits to broader social conditions such as poverty, inequality, and violence. The findings, drawn from multiple datasets and encompassing 1.8 million individuals across 183 countries and 144,000 participants in the United States, offer new insights into how environment and society can shape individual psychology (NewsNationNow).