The Horrible History of Human Experimentation

• So many sketchy things when it comes to human experimentation.

What do you think you know about the history of human experimentation? Do you believe that it was horrible?

1. Anatomists sometimes obtained bodies illegally. Before modern laws regulated human remains, medical schools desperately needed cadavers for dissection. In 18th- and 19th-century Britain and America, “resurrection men” made money by secretly digging up recently buried bodies and selling them to anatomists.
2. Edward Jenner’s smallpox experiment became legendary. In 1796, Jenner tested his smallpox vaccination idea by inoculating eight-year-old James Phipps with material from a cowpox sore. The experiment helped establish vaccination, although modern ethical standards would not permit the way the experiment was conducted.
3. The 19th century produced both breakthroughs and abuses. Researchers investigated anesthesia, infectious diseases, surgery, vaccines, and other treatments using human subjects. Some experiments were carefully observed; others involved vulnerable people who had little ability to refuse. Did you know this about the history of human experimentation?
4. Prisoners became especially vulnerable. In various countries and periods, prisoners were recruited—or pressured—into medical experiments because researchers considered them convenient populations for study.
5. The U.S. conducted unethical syphilis research. The infamous Tuskegee syphilis study, begun in 1932, followed Black men with syphilis without properly informing them about the study and withheld effective treatment after penicillin became available. The study continued until 1972 and became a major catalyst for stronger research protections in the United States.
6. Guatemala saw an even darker experiment. From 1946 to 1948, U.S.-supported researchers deliberately exposed people in Guatemala—including prisoners and psychiatric patients—to sexually transmitted infections without meaningful informed consent. The episode remained largely unknown to the public for decades. Did you know this about the history of human experimentation?
7. Nazi Germany carried out horrific experiments. During World War II, Nazi physicians conducted experiments on concentration-camp prisoners, including studies involving extreme cold, high altitude, infectious diseases, sterilization, and other procedures. Victims were deliberately subjected to severe suffering, injury, and death.
8. These crimes helped transform medical ethics. After World War II, the Nuremberg Code established principles emphasizing voluntary consent and protection of human subjects. It became one of the foundational documents in modern research ethics.
9. Japan also conducted notorious wartime experiments. Unit 731 conducted biological and medical experiments on prisoners and civilians during Japan’s occupation of parts of China. Victims were subjected to horrific procedures, including deliberate infection and vivisection.
10. Some unethical research happened in psychiatric institutions.  Institutionalized people were particularly vulnerable because they often had limited freedom and little ability to challenge researchers or doctors. Did you know this about the history of human experimentation?
11. Children were sometimes used in medical research. Historical researchers conducted experiments involving children in areas such as infectious disease and vaccines. Today, pediatric research is subject to especially strict ethical requirements.
12. Radiation experiments became another dark chapter. During the 20th century, some people were exposed to radioactive materials in experiments without adequate disclosure or consent. These revelations later prompted investigations and reforms.
13. Prisoners were sometimes deliberately infected with diseases. Researchers occasionally wanted to understand how infections spread or whether particular treatments worked. Modern research standards prohibit deliberately exposing people to serious risks without rigorous justification and informed consent.
14. The most important change was the concept of informed consent. Modern research ethics generally require participants to understand what they’re agreeing to, the risks involved, and their right to refuse or withdraw. Did you know this about the history of human experimentation?
15. Today, ethics committees review human research. Institutional Review Boards and similar bodies examine proposed studies to determine whether risks are justified and participants are adequately protected.

Is this what you thought the history of human experimentation would be like? Add something to the conversation in the comments.