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How genetics influences our personality, according to sciencePhoto by Luriko Yamaguchi on Pexels
ScienceLisboa

How genetics influences our personality, according to science

extra4 September 2026 at 15:53

The largest study ever conducted on personality genetics analyzed more than one million people in 46 countries and identified 1,260 genetic variants associated with personality traits. However, these variants explain less than 10% of the differences between people, indicating that the influence of genes on personality is much smaller than many imagine.

The research, published in the journal Nature, demonstrated that the environment, life experiences and personal choices are significantly more important in shaping each individual's personality than genetic inheritance.

Researchers from around the world came together in the ReGPC Consortium to conduct the study, which used data from people with European and African ancestry, seeking to map which genetic variants are associated with different personality traits.

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