The concept of 'doubling'.
Lifton introduced the psychological phenomenon of "doubling," explaining how doctors created a secondary, adapted self to carry out atrocities without experiencing standard emotional conflict.
KODAMA / HISTORY & TRUE CRIME
2026
History · True Crime · Psychological · Investigation
The Nazi Doctors
A groundbreaking psychological and historical investigation into how medical professionals in Nazi Germany transformed the healing arts into tools of industrial mass murder and genocide.
Categories
Author
Robert Jay Lifton
Publication
1986
Country
United States
Original Publisher
Basic Books
Full Title
The Nazi Doctors: Medical Killing and the Psychology of Genocide
Type
Psychological Investigation / Nonfiction
A definitive study of professional complicity in state-sponsored atrocity.
Germany & Auschwitz · 1939 — 1945
KODAMA ARCHIVE
HISTORY & TRUE CRIME
01
About the book
When the healers became executioners.
How could physicians—men and women sworn to an oath to preserve human life—participate actively in the selection, torture, and mass murder of millions? Robert Jay Lifton tackles this profound moral question by studying the psychiatrists, camp doctors, and researchers who operated inside the Nazi regime and Auschwitz.
Through extensive interviews with surviving camp doctors and victims, Lifton investigates the psychological mechanisms of "doubling," where ordinary professionals split their identities to function seamlessly inside an environment of absolute evil while convincing themselves they were performing medical duties.
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A landmark psychological investigation into how the medical profession was corrupted by totalitarian ideology.KODAMA / EDITORIAL NOTE
Archive
A few things that make the book even more intriguing.
Direct interviews with perpetrators.
Unlike purely historical studies, Lifton conducted direct, face-to-face interviews with former Nazi doctors who worked inside concentration camps, providing unprecedented psychological insights.
From euthanasia to industrial extermination.
The book traces how medicalized killing began with the T4 euthanasia program targeting disabled German citizens before expanding into the industrial murder machinery of the death camps.
National Book Award winner.
The Nazi Doctors received widespread critical acclaim and won the National Book Award for Nonfiction, cementing its status as an essential moral text.
On screen
Documentaries & Visual Legacy.
Lifton's psychiatric research has shaped numerous educational films and historical documentaries examining medical ethics and the Holocaust.
1999
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Medical Ethics & Historical Documentaries
Academic specials and broadcast features exploring the breakdown of medical ethics and human experimentation during World War II.
Watch
Author Interview & Legacy.
An insightful archival interview with Dr. Robert Jay Lifton discussing the psychology of the Nazi doctors, moral corruption, and the mechanics of genocide..
BOOK REVIEW
Robert Jay Lifton · The Nazi Doctors · Book Review
Legacy
A permanent warning for medical ethics.
The Nazi Doctors remains an indispensable study of how easily professional ethics can be subverted by state power, serving as an ongoing reminder of the vigilance required to protect human dignity.
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