Do you think introversion and extroversion are genetically based ?

I just received an update from ancestry.com indicating that my dna indicates I’m "probably an introvert" (in fact, I am). Curious, considering that my youngest sister, who comes from the same dna source is very much an extrovert and always has been. 🤔

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SunshineGirl · 36-40, F

I would imagine that introversion is innate, whereas extroversion probably has to be learned. So that was a fairly obvious statement. I have three sisters and we are all very different in the ways in which we present ourselves publicly.

bijouxbroussard · F

@SunshineGirl I dunno. This sister was an extroverted baby. You know how small kids tend to hang back behind family members in large gatherings of adults ? Not this one. Three years old, introducing herself, shaking folks’ hands. She has other issues, but has never lacked what they used to call "moxie". 😄