For example, it seems that trauma suffered by Holocaust survivors may have been passed on to their children.23 A genetic study of 32 Jewish men and women who had been interned in a Nazi concentration camp, or witnessed or experienced torture, or who had had to hide during the Second World War, showed that they and their children exhibited epigenetic changes not found in children of Jewish families who were outside Europe during the War. The changes were in the region of a gene that is known to be involved in regulating stress; the children also had an increased likelihood of stress disorders.
