👉 Human experimentation has a long and often controversial history, with many instances involving unethical practices where participants were subjected to extreme physical or psychological stress without informed consent; modern scientific standards now restrict such experiments to strict ethical guidelines in order to protect the rights and welfare of research subjects. Despite these regulations, some high-risk studies still exist in fields like neuroscience or biotechnology, always subject to rigorous oversight by ethics committees to ensure any potential benefits outweigh the risks involved.