My friend and I got into a debate, she said most people who died in Auschwitz, died from the gas chamber, I said the greater number perished from poor diet, overwork and disease. The average life expectancy was 6 weeks to 3 months. I have read numerous books and autobiographies and the gas chambers came later in the camp's life, I think it was 1943. As it is doubtful that we will ever know the exact details, the Germans were meticulous record keepers. Anyone have an idea which two categories did the most killing?