https://en.wikipedia.org/wiki/Self-experimentation_in_medicine https://en.wikipedia.org/wiki/Self-experimentation_in_medici... seems like a subtle topic; as the

https://en.wikipedia.org/wiki/Self-experimentation_in_medicine https://en.wikipedia.org/wiki/Self-experimentation_in_medici... seems like a subtle topic; as the article points out, a number of these experimenters died or were seriously harmed by their experiments, while others were celebrated for their discoveries. (That's not to express an opinion on the value or foolhardiness of some recent self-experiments is.)