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. 🤔

This page is a permanent link to the reply below and its nested replies. See all post replies »

Graylight · 51-55, F

On Ancestry (I believe), they're comparing it to any other known possible DNA matches (I'm swimming in the ocean of genealogy myself) and the way they answer questions.

But yes, research indicates some absolutely have a penchant for introversion. This is seen in the same areas of the brain that also affect addiction, ADHD and some other conditions (which is not to imply a causal relationship). It just seems some people simply tend to isolate, and typically without any adverse consequences. They do what works for them just as social butterflies do what they do.