New Scientist, April 14, 2008 Research from the University of Cambridge suggests that the movements of money in the financial markets are correlated to stock traders' levels of two hormones: the steroids testosterone and cortisol. The article quotes Dr. Robert Rose, executive director of the Mind, Brain, Body and Health Initiative at UTMB, who did experiments in the 1970s with monkeys showing the rise and fall of testosterone with social interactions.