The widespread belief that testosterone has a causal link to aggression has been debunked. Some sources: https://www.sciencedaily.com/releases/2009/12/0912081

The widespread belief that testosterone has a causal link to aggression has been debunked. Some sources: https://www.sciencedaily.com/releases/2009/12/091208132241.htm https://www.sciencedaily.com/releases/2009/12/091208132241.h... https://www.nature.com/articles/news.2009.1131 https://www.nature.com/articles/news.2009.1131