The fathers have eaten sour grapes, and the children’s teeth are set on edge (Jer. 31:29). This interview with Rachel Yehuda, Professor of Psychiatry and Neuroscience, is an informative update on research in epigenetics. Yehuda discusses the current science, its application to the Holocaust and 9/11, and its implications for the intersection of the spiritual and the physical. This audio clip may be useful for biology, OT, psychology, pre-med, and pre-sem.