Does having a toxic home environment alter your genes?

I read in an article once that children who lived in homes where there was a lot of conflict, or who lived in war zones, had their DNA altered. Is there any truth to this?

I think this may refer to epigenetics. It’s about the changes in organisms caused by modification of gene expression rather than alteration of the genetic code: how the events in someone’s life changes the way the DNA is expressed and how those changes are passed on to the next generation.

Also, we have to take into consideration that we are all a combination of our genes and our environment.