👉 Famous examples of human experimentation, though often morally questionable and unethical by modern standards, include the notorious Tuskegee syphilis study in which African-American men were misled about receiving inadequate treatment for syphilis over decades, and Stanley Milgram's obedience studies that tested participants on how far they would go to obey an authority figure. These experiments revealed disturbing aspects of human nature but raised significant ethical concerns due to their exploitation of the subjects' trust and well-being.