http://www.cbc.ca/news/technology/story/2009/12/08/tech-biology-testosterone-behaviour.html
Testosterone doesn’t cause people to become aggressive or risky as many people believe but actually encourages fairness, European researchers say.
Researchers at the University of Zurich and Royal Holloway, University of London conducted a study of 120 women and found that testosterone promoted fairness in a bargaining game.