Key points

Personality often changes with age but not much is known about dark personality traits.

A new study investigated the Dark Triad in more than 1,000 volunteers in different age groups.

Narcissism stayed stable over the lifetime.

Our personality is not set in stone but can change quite significantly over the course of a lifetime. During different phases of life like childhood , adolescence , adulthood, and older age, many factors such as social relationships with parents and friends, school- or job-related influences, economic factors, health status, and more can influence the development of our personality. Importantly, psychological research on personality has strongly focused on personality traits like the well-known big five ( neuroticism , extraversion , openn

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