The extent to which human DNA is modifiable by environment and behavior is still being understood, with ongoing discoveries revealing more ways to modify gene expression than previously thought.

“I think that's something we're still understanding at this point. I mean, I think every day we're getting more and more information about the ways that we can actually modify gene expression and these things that we thought were totally predetermined in the past. Um, and so yeah, I think we're still learning with epigenetics and all of these new fields just how much we can actually change things.”