Inside the sealed-off ghettos, the Nazis reduced food rations to starvation level, an experience described by Sara Grossman, confined at age 21 in the Lodz ghetto: "I don't think anything hurts as much as hunger. You become wild. You are not responsible for what you say and what you do. You become an animal in the full meaning of the word. You prey on others. You will steal. That is what hunger does to us. It dehumanizes you. You're not a human being any more. Slowly, slowly the Germans were achieving their goal. I think they let us suffer from hunger, not because there was not enough food, but because this was their method of demoralizing us, of degrading us, of torturing us. These were their methods, and they implemented these methods scrupulously. Therefore we had very many, many deaths daily. Very many sick people for whom there was no medication, no help, no remedy. We just stayed there, and lay there, and the end was coming."

Freund and I walked the path of the tunnel, over the large hummock of earth, out toward the surrounding pines. Not such a long distance on foot, perhaps, but positively heroic when one considered that it had been dug, night after night, by chained men who had spent their daylight hours laboring at their unthinkable task, subsisting on nothing more than gruel.
Before the war, Mengele had received doctorates in anthropology and medicine, and began a career as a researcher. He joined the Nazi Party in 1937 and the SS in 1938. He was assigned as a battalion medical officer at the start of World War II, then transferred to the Nazi concentration camps service in early 1943 and assigned to Auschwitz, where he saw the opportunity to conduct genetic research on human subjects. His subsequent experiments focused primarily on twins, with little regard for the health or safety of the victims.[2][3]