Dark Traits, Broken Sleep: How Machiavellianism and Psychopathy Impact Rest

A recent study delves into the link between the Dark Triad personality traits--Machiavellianism, psychopathy, and narcissism--and sleep quality, particularly in individuals with affective disorders (AD). Using data from 657 people, the research reveals that Machiavellianism and psychopathy have a significantly negative impact on sleep quality.