Your genes account for 30-50% of your personality. What makes up the rest?

Oct 5, 2016

Plaster phrenological models of heads, showing different parts of the brain, are seen at an exhibition at the Wellcome Collection in London March 27, 2012. We've pickled it, dessicated it, drilled it, mummified it, chopped it and sliced it over centuries.

Both genetic and environmental factors determine someone’s personality. Image: REUTERS/Chris Helgren

Perminder Sachdev

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Your genes account for 30-50% of your personality. What makes up the rest?

Perminder Sachdev

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