Genetics of personality associated with major life outcomes, study finds

A new study reveals that genetics of personality could play a significant role in major life outcomes, according to international research. The Revived Genomics of Personality Consortium, comprising researchers from around the globe, analyzed data from 46 distinct cohorts to investigate the genetic basis of personality. The findings, published in the journal Nature, indicate that over 1,200 gene variants are connected to the Big Five personality traits: openness, conscientiousness, extraversion, agreeableness, and neuroticism.

These genetic links have been associated with numerous life outcomes, including health behaviors, education, career paths, and even perception by close others. Despite the genetic influences, the researchers emphasized that environment also plays a crucial role in shaping personality. For instance, common genetic variants linked to openness to experience were found to predict individuals moving to more cosmopolitan neighborhoods.

The study's lead author, Ted Schwaba from Michigan State University, clarified that no single "personality gene" exists, as personality traits are associated with multiple genetic variants. However, even the most significant individual genetic effects remain small. Nonetheless, the combined impact of these variants can be substantial.

The researchers noted that understanding the genetics of personality could benefit various fields, such as medicine, vocational studies, and personal development, by shedding light on how these traits influence health behaviors, education, career progression, and more.