The study showed that Holocaust survivors and their descendants shared the same epigenetic tags on the very same part of the FKBP5 gene. Then Yehuda compared those genes with those of Jewish people who lived outside of Europe and did not suffer through the Holocaust. Their epigenetic tags weren’t altered. It was clear that the trauma of experiencing the Holocaust specifically created DNA methylation on the FKBP5 gene of survivors…and their children.
